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B2 noun #8,500 most common 10 min read

家系

kakei Top 8,500

Practice it Examples Notes & Tips 家系 in 30 Seconds

Explanation 家系 in your Level:

At the A1 level, '家系' (kakei) is a very advanced word that you probably won't use yourself. You might see the first kanji '家' (ka/ie), which means 'house' or 'home.' At this stage, you should focus on the word '家族' (kazoku), which means 'family'—the people you live with. If you see '家系' in a textbook, just remember it has something to do with the 'history' of a house. You don't need to worry about using it in your basic introductions. For example, instead of saying 'My kakei is Japanese,' you would just say 'I am Japanese' (私は日本人です) or 'My family is Japanese' (私の家族は日本人です). The word 'kakei' is like a big puzzle piece that shows many generations, while 'kazoku' is just the small group of people you know. If you go to a ramen shop and see '家系' (Iekei), just know it's a name for a delicious, salty type of ramen!

At the A2 level, you are starting to learn more kanji and more specific nouns. You might encounter '家系' (kakei) when reading about Japanese culture or history. It's important to know that this word is different from '家族' (kazoku). While 'kazoku' refers to your mom, dad, and siblings, '家系' refers to the whole 'line' of your family going back many years. Think of it like a 'family tree.' You might hear it in a doctor's office if they ask about your family's health history. You don't need to use it in daily conversation yet, but you should recognize it as 'family lineage.' A common phrase you might see is '家系図' (kakeizu), which means 'family tree diagram.' If you are interested in history, this is a useful word to know because it explains how people are connected to their ancestors.

At the B1 level, you should begin to understand the nuance of '家系' (kakei) compared to other words like '血筋' (chisuji - bloodline). '家系' is a formal noun used to discuss the history, occupation, or status that is passed down through a family. You might use it when talking about your family's professional background, such as 'I come from a lineage of teachers.' It is also the time to learn the compound '家系図' (kakeizu) for family trees. You will start hearing this word in more serious contexts, like news reports about famous families or in medical situations. You should be able to understand sentences like 'He is from a famous lineage' (彼は有名な家系の出身だ). Remember that 'kakei' is a noun, so you often use it with the particle 'の' to describe someone's background. It's a key word for moving from basic 'family' talk to more adult, descriptive language about heritage.

At the B2 level, '家系' (kakei) is a word you are expected to know and use correctly. This level focuses on more abstract and formal concepts, and 'lineage' fits perfectly. You should understand how '家系' relates to the Japanese 'Ie' system and how it implies a sense of duty or inherited traits. You should be comfortable using it in medical, historical, and social contexts. For example, you might discuss 'hereditary diseases' (家系的な病気) or 'noble lineages' (由緒ある家系). At this stage, you should also be aware of the homophone '家計' (kakei), which means 'household budget,' and be careful not to confuse them in writing or listening. You can use 'kakei' to add depth to your descriptions of people's backgrounds or to discuss sociological trends in Japan, such as the declining number of successors in traditional family lines. It's a versatile word that shows you have a deeper grasp of Japanese social structures.

At the C1 level, you should have a sophisticated understanding of '家系' (kakei) and its synonyms like '系譜' (keifu) and '血統' (kettou). You can use 'kakei' to engage in complex discussions about genealogy, inheritance laws, and the historical evolution of the Japanese family system. You might analyze how a 'kakei' is maintained through adoption (養子縁組) in traditional arts or business. You should also understand the metaphorical uses of the word, such as in 'Iekei Ramen,' and how the concept of 'lineage' applies to schools of thought or artistic styles. In professional or academic writing, you can use 'kakei' to describe data sets related to genetics or sociology. Your usage should be precise, recognizing that 'kakei' focuses on the 'house' as a continuing entity across time. You should also be able to interpret nuances in literature where the 'kakei' represents a source of pride or a heavy burden for a character.

At the C2 level, your mastery of '家系' (kakei) should be near-native. You understand the deep historical and legal implications of the term, including its relation to the pre-war Civil Code and the modern 'Koseki' (family register) system. You can use the word in high-level academic discourse, perhaps discussing the 'kakei' of political dynasties or the genetic mapping of specific populations. You are sensitive to the subtle differences between 'kakei' and more specialized terms like '門地' (monchi - lineage/social status) or '出自' (shutsuji - origins/birth). You can appreciate the word's use in classical or modern literature to explore themes of destiny, social mobility, and the tension between individual identity and family history. At this level, you don't just know what the word means; you understand the entire cultural and historical 'system' (系) that the word '家系' represents in the Japanese consciousness.

Practice it Examples Notes & Tips

家系 in 30 Seconds

Kakei means 'family line' or 'lineage,' tracing ancestors and descendants over generations.
It is different from 'kazoku' (immediate family) as it focuses on historical and biological continuity.
Commonly used in medical contexts for hereditary traits and in genealogy for family trees.
Also famous in 'Iekei Ramen,' referring to a specific lineage of ramen shops in Yokohama.

The Japanese word 家系 (kakei) is a profound term that encapsulates the concept of a family line, lineage, or ancestry. While the English word 'family' often refers to the immediate household, kakei looks backward through time, tracing the biological and social connections that link ancestors to current generations. It is composed of two kanji: 家 (ka/house) and 系 (kei/system or lineage). Together, they describe the 'system of the house,' implying a structured progression of generations.

Genealogical Context: In formal discussions about heritage, kakei is the standard term. It is used when examining family trees or documenting the history of a specific clan. For example, a researcher might investigate the kakei of a historical figure to understand their social standing.
Medical and Biological Usage: In a medical setting, kakei refers to hereditary traits or conditions. Doctors might ask about a patient's kakei to determine if they are at risk for genetic diseases that run in the family line.

私の家系には、長寿の人が多いです。(In my family line, there are many people who live long lives.)

Understanding kakei requires an appreciation for the traditional Japanese 'Ie' system, where the continuation of the family name and business was paramount. Unlike Western concepts of individualism, the kakei suggests that an individual is a single link in a long, continuous chain. This word is rarely used for casual daily chats about what your siblings are doing; instead, it is reserved for broader discussions about origins and inherited characteristics.

彼は由緒ある家系の生まれだ。(He was born into a distinguished family line.)

In modern Japan, the term has also gained a very specific cultural meaning in the culinary world: 家系ラーメン (Iekei Ramen). This refers to a specific style of ramen originating from the Yoshimuraya shop in Yokohama. The 'lineage' here refers to the shops that were trained by or branched off from the original master, creating a 'family tree' of ramen restaurants. This usage highlights how the concept of kakei extends beyond biology into professional apprenticeship and inherited traditions.

Social Status: Historically, kakei was closely tied to social class. Samurai families kept meticulous records of their kakei to prove their status and right to land or stipends. Even today, some prestigious families take great pride in their ancient kakei.

その病気は、彼の家系に特有のものだ。(That disease is peculiar to his family line.)

彼女は自分の家系を調査するために、古い戸籍を調べた。(She examined old family registers to investigate her family line.)

Conclusion: Kakei is a word that bridges the past and the present. It represents the flow of blood, culture, and history through the vessel of the family unit. Whether you are discussing genetics, history, or even noodles, this word provides a framework for understanding how the present is rooted in the past.

この家系図は、江戸時代まで遡ることができる。(This family tree/lineage chart can be traced back to the Edo period.)

Using 家系 (kakei) correctly involves understanding its role as a noun that describes a collective history rather than a group of people. You don't usually say 'I am eating dinner with my kakei.' Instead, you say 'My kakei has a history of artists.' It functions as the subject or object when discussing traits, history, or classification.

Describing Heritage: When describing someone's background, kakei is often paired with adjectives like 由緒ある (yuisho-aru - distinguished/historic) or 複雑な (fukuzatsu-na - complex). It helps define the 'quality' or 'origin' of one's lineage.

彼は学者の家系に生まれた。(He was born into a family line of scholars.)

Notice the use of the particle に (ni) with the verb 生まれる (umareru - to be born). This is a very common pattern: [Noun] + の + 家系に生まれる. It indicates the specific lineage one originated from. You can replace 'scholars' with 'doctors' (医者), 'artists' (芸術家), or 'merchants' (商人) to specify the family's traditional occupation.

Medical Discussions: In medical contexts, kakei is used to discuss the prevalence of certain conditions. Phrases like 家系的に (kakei-teki ni - lineage-wise/hereditarily) are common.

家系的に、私たちは太りやすい体質だ。(Lineage-wise, we have a constitution that gains weight easily.)

Another important compound is 家系図 (kakeizu), which means 'family tree.' This is a physical or digital chart that visualizes the kakei. When you are 'tracing' or 'researching' your lineage, you are often 'creating' a kakeizu.

自分の家系を遡って調べたことがありますか？(Have you ever traced back and researched your family line?)

In the context of Ramen, the word is used as a prefix. 家系ラーメン (Iekei Ramen) is a proper noun category. You might say, '今日の昼ごはんは家系にしよう' (Let's have Iekei [ramen] for lunch today). Here, the word is so common that 'ramen' is often omitted in casual speech among enthusiasts.

Tracing Lineage: The verb 遡る (sakanoboru - to go back/trace back) is frequently used with kakei. It implies looking back through history to find the root of the family.

その家系は数百年続いている。(That family line has continued for hundreds of years.)

When discussing the end of a lineage, you might use the verb 絶える (taeru - to die out/cease). This is a heavy, serious topic often found in literature or discussions about traditional Japanese arts where a 'successor' (後継者 - koukeisha) is needed to keep the kakei alive.

後継者がいなければ、この家系は絶えてしまう。(If there is no successor, this family line will die out.)

彼は武士の家系であることを誇りに思っている。(He is proud of being from a samurai lineage.)

While 家系 (kakei) might sound like a word found only in dusty history books, it appears in several modern, everyday contexts in Japan. From the doctor's office to the neon-lit streets of Yokohama, the concept of lineage remains relevant in contemporary Japanese life.

The Hospital or Clinic: When you fill out a medical questionnaire (問診票 - monshinhyou) in Japan, you will often see a section about your family's medical history. The word kakei is used here to identify hereditary risks. Doctors use it to ask if certain diseases like diabetes or high blood pressure are 'in the lineage.'

医師：「ご家系に心臓病の方はいますか？」 (Doctor: "Is there anyone with heart disease in your family line?")

This is perhaps the most practical and frequent formal use of the word for average citizens. It shifts the focus from 'who you live with' to 'what is written in your DNA.'

The Ramen Shop: If you walk through any major Japanese city, you will see signs for 家系ラーメン (Iekei Ramen). This style is famous for its thick, salty tonkotsu-shoyu (pork bone and soy sauce) broth, thick noodles, and toppings like spinach and nori. The name comes from the suffix '-ya' (meaning house/shop) used by the original shop, Yoshimuraya. Other shops that learned from them also used '-ya', creating a 'lineage' of shops.

「ここのラーメン、王道の家系だね！」 (This ramen is a classic Iekei style!)

In this context, kakei signifies authenticity and a specific flavor profile. It is a very casual, common way to hear the word, though the meaning is metaphorical compared to biological lineage.

Historical Dramas (Taiga Dramas): If you watch NHK's annual Taiga Drama or any period piece (Jidaigeki), you will hear characters discussing their kakei constantly. In the feudal era, your lineage determined your entire life—your job, your marriage prospects, and your social standing. Characters might boast about their noble kakei or lament a kakei that has fallen into disgrace.

「我が家系の誇りにかけて！」 (I swear on the pride of our family line!)

This usage is dramatic and formal, often accompanied by archaic language, but it reinforces the cultural importance of ancestry in Japan.

テレビ番組で、有名人の家系を深掘りするコーナーがあった。(There was a segment on a TV show that dug deep into a celebrity's family line.)

Finally, you might hear it in news reports concerning the Imperial Family or traditional performing arts like Kabuki or Tea Ceremony, where the continuation of a specific kakei is vital for the preservation of Japanese culture. In these circles, kakei isn't just about the past; it's a responsibility for the future.

While 家系 (kakei) is a straightforward word, English speakers often make mistakes by using it as a direct substitute for 'family' or confusing it with similar-sounding or similar-meaning terms. Understanding the boundaries of this word is key to sounding natural.

Mistake 1: Using it for 'Family Members': The most common error is saying kakei when you mean kazoku (家族). If you say 'My kakei is coming to visit,' it sounds like a parade of ghosts from the 1700s is arriving! Always use kazoku for the living people you are related to.

❌ 家系と一緒に旅行します。(Wrong: I will travel with my family line.)
✅ 家族と一緒に旅行します。(Correct: I will travel with my family.)

Think of kakei as an abstract concept of lineage, not a group of people sitting at a table.

Mistake 2: Confusing with 'Kakei' (Household Finance): There is another common word pronounced kakei but written as 家計. This refers to household finances or budget. If you are talking about money, use 家計 (kakei - budget). If you are talking about ancestors, use 家系 (kakei - lineage). They sound identical, so context is everything in conversation!

❌ 家系を助けるためにバイトをする。(Confusing: Working part-time to help the family line.)
✅ 家計を助けるためにバイトをする。(Correct: Working part-time to help the household budget.)

Mistake 3: Misusing 'Iekei' for any Ramen: While 'Iekei' is a type of ramen, you cannot use it for just any shop. It specifically refers to the Yokohama style. Calling a light chicken-broth ramen 'Iekei' would be factually incorrect in a culinary sense.

❌ この醤油ラーメンは家系ですね。(Incorrect if it's not the specific Yokohama style.)

Lastly, be careful with the level of formality. Kakei is a somewhat stiff, formal word. Using it in a very casual setting when a simpler word like 'chi' (血 - blood/genes) or 'kazoku' would suffice can make you sound overly academic or dramatic.

Summary of Nuance: Avoid using kakei for daily family interactions. Reserve it for history, genetics, or specific ramen discussions. Check the kanji to ensure you aren't talking about your bank account instead of your ancestors!

In Japanese, there are several words that touch upon the idea of family and lineage. Choosing the right one depends on whether you are talking about social status, biological blood, or a formal record. Here is a comparison of 家系 (kakei) with its closest relatives.

家系 (Kakei) vs. 血筋 (Chisuji): 家系 is more formal and systematic, often referring to the 'house' as a social unit. 血筋 literally means 'bloodline' and is used more for biological traits or 'having it in your blood.' You'd use chisuji to say someone is a 'natural' at something because of their parents.
家系 (Kakei) vs. 家柄 (Iegara): 家柄 refers to the social standing, rank, or reputation of a family. While kakei is the map of the lineage, iegara is the 'prestige' associated with it. You might marry someone because of their iegara (good family background).

彼は良い家柄の出身だ。(He comes from a good family background/social standing.)

Another similar word is 系譜 (keifu), which means 'genealogy' or 'pedigree.' This is even more formal than kakei and is often used in academic or artistic contexts to describe the 'lineage' of an idea, a style of painting, or a school of thought.

Comparison Table

家系 (Kakei): Focuses on the structure and history of the family line.
血統 (Kettou): Usually used for animals (pedigree/breed) or very elite human bloodlines (royalty).
先祖 (Senzo): Refers to the ancestors themselves as individuals.

この馬は、優れた血統を持っている。(This horse has an excellent pedigree.)

For learners, the most important thing is to distinguish kakei from kazoku. While English often uses 'family' for both 'my parents' and 'my heritage,' Japanese splits these concepts. If you are talking about the 'flow' of generations, kakei is your best friend. If you are talking about the people you love and live with, stick with kazoku.

日本文化の系譜をたどる。(Tracing the genealogy of Japanese culture.)

In summary, kakei occupies a middle ground—more formal than 'blood' but more structural than 'ancestors.' It is the 'system' that connects you to those who came before you.

How Formal Is It?

Fun Fact

The 'kei' in 'kakei' is the same 'kei' found in 'Keitai' (mobile phone - portable system) and 'Keitou' (system). It emphasizes the interconnectedness of things in a sequence.

Pronunciation Guide

UK /kækeɪ/

US /kɑkeɪ/

In Japanese, 'kakei' has a flat pitch accent (Heiban), meaning the pitch stays relatively steady after the first syllable.

Rhymes With

Tokei (Clock) Zekkei (Superb view) Hakei (Waveform) Taikei (System) Keikei (Glaringly) Meikei (Famous scenery) Seikei (Livelihood) Shuukei (Totaling)

Common Errors

Pronouncing it like 'cakey' (the English word). It should be three syllables: ka-ke-i.
Confusing the pitch with 'kakei' (household budget), though both are often Heiban, context is key.
Stressing the 'ka' too hard like 'KA-kei'. Keep it even.
Merging the 'e' and 'i' into a single English 'ay' sound. In Japanese, they are distinct.
Confusing it with 'kaki' (persimmon/oyster).

Difficulty Rating

Reading 4/5

The kanji are common, but the second one '系' might be tricky for beginners. The word itself is formal.

Writing 5/5

Writing '系' correctly requires attention to stroke order and balance.

Speaking 3/5

Easy to pronounce, but needs context to avoid confusion with 'household budget'.

Listening 4/5

Must distinguish between 'lineage' and 'budget' based on the surrounding conversation.

What to Learn Next

Prerequisites

家 (House) 家族 (Family) 先祖 (Ancestors) 系統 (System) 図 (Diagram)

Learn Next

血筋 (Bloodline) 家柄 (Family status) 系譜 (Genealogy) 継承 (Succession) 由緒 (History/Origin)

Advanced

戸籍 (Family register) 養子 (Adopted child) 跡取り (Successor) 本家 (Head of family) 分家 (Branch of family)

Grammar to Know

Noun + の + 家系 (Lineage of...)

学者の家系 (A lineage of scholars)

～に生まれる (To be born into...)

由緒ある家系に生まれた。

～を遡る (To trace back...)

家系を数百年遡る。

～的 (Turning a noun into an adjective)

家系的な特徴 (Lineal characteristic)

～によって (Depending on...)

家系によって習慣が違う。

Examples by Level

私の家は古いです。

My house is old.

Using '家' (house) which is the first part of '家系'.

家族は四人です。

There are four people in my family.

Using '家族' (family) as a simpler alternative.

お父さんは先生です。

My father is a teacher.

Simple sentence about family background.

家系ラーメンを食べます。

I eat Iekei Ramen.

The most common casual use of the word.

このラーメンはおいしいです。

This ramen is delicious.

Simple adjective use.

私の家系は日本人です。

My family line is Japanese.

Basic use of 'kakei' with 'desu'.

家系図を見ました。

I saw a family tree.

Introduction to the compound word 'kakeizu'.

これは私の家族です。

This is my family.

Basic 'this is' structure.

彼の家系はとても有名です。

His family line is very famous.

Using an adjective to describe 'kakei'.

私は自分の家系について知りたいです。

I want to know about my family line.

Using 'about' (について) with 'kakei'.

家系図を作るのは楽しいです。

Making a family tree is fun.

Gerund phrase as a subject.

医者は私の家系について聞きました。

The doctor asked about my family line.

Context of medical history.

彼女は古い家系の出身です。

She comes from an old family line.

Using 'shusshin' (origin) with 'kakei'.

家系ラーメンは横浜が有名です。

Yokohama is famous for Iekei Ramen.

Proper noun context.

私の家系には、有名な人がいません。

In my family line, there are no famous people.

Negative existence sentence.

この家系図は江戸時代のものです。

This family tree is from the Edo period.

Possessive and historical context.

彼女は代々続く医者の家系に生まれた。

She was born into a family line of doctors that has continued for generations.

Using 'daidai tsuzuku' (continuing for generations).

家系的に、私は目が悪くなりやすい。

Lineage-wise, I tend to have poor eyesight.

Using '-teki ni' to turn the noun into an adverbial phrase.

自分の家系を遡って調べることにした。

I decided to trace back and research my family line.

Using 'sakanoboru' (to trace back).

その家系は、明治時代に途絶えてしまった。

That family line died out in the Meiji era.

Using 'todaeru' (to cease/die out).

彼は由緒ある家系の誇りを持っている。

He takes pride in his distinguished family line.

Using 'hokori' (pride).

家系図を完成させるには時間がかかる。

It takes time to complete a family tree.

Using 'kansei saseru' (to complete).

家系によって、習慣や考え方が異なる。

Habits and ways of thinking differ depending on the family line.

Using 'ni yotte' (depending on).

彼女の家系には芸術家が多いそうだ。

I heard there are many artists in her family line.

Using 'sou da' (I heard).

この病気は家系内に遺伝する可能性がある。

This disease may be hereditary within the family line.

Using 'iden' (heredity) and 'kanousei' (possibility).

彼は名門の家系に生まれ、英才教育を受けた。

He was born into a prestigious family line and received a gifted education.

Using 'meimon' (prestigious) and 'eisaikyouiku' (gifted education).

家系図を調査した結果、意外な事実が判明した。

As a result of investigating the family tree, surprising facts came to light.

Using 'kekka' (result) and 'hanmei' (become clear).

家系を守るために、彼は家業を継ぐ決心をした。

In order to protect the family line, he decided to take over the family business.

Using 'mamoru' (protect) and 'kagyou o tsugu' (succeed business).

その地域には、特定の家系が支配してきた歴史がある。

That region has a history of being ruled by specific family lines.

Using 'shihai' (rule/dominate).

家系的な背景が、彼の政治的信条に影響を与えている。

His family background is influencing his political beliefs.

Using 'eikyou o ataeru' (to influence).

彼女は自分の家系が武士であることを誇示している。

She shows off that her lineage is of the samurai class.

Using 'kojishi' (to show off/parade).

家系調査の専門家に依頼して、ルーツを探った。

I hired a genealogy expert to search for my roots.

Using 'iraimuru' (to request/hire).

家系の存続は、伝統芸能の世界において極めて重要だ。

The survival of the family line is extremely important in the world of traditional performing arts.

Using 'sonzoku' (survival/continuation) and 'kiwamete' (extremely).

近代化に伴い、家系という意識は希薄になりつつある。

With modernization, the consciousness of 'family line' is becoming diluted.

Using 'tomonai' (along with) and 'kihaku' (diluted/weak).

その小説は、三代にわたる家系の没落を描いている。

The novel depicts the downfall of a family line over three generations.

Using 'botsuraku' (downfall/ruin).

家系の中に複雑な人間関係が絡み合っている。

Complex human relationships are intertwined within the family line.

Using 'karamiatteiru' (intertwined).

彼は家系の呪縛から逃れようと、海外へ渡った。

He went abroad to escape the curse/shackles of his family line.

Using 'jubaku' (curse/spell/shackles).

家系図の記載には、当時の社会情勢が反映されている。

The entries in the family tree reflect the social conditions of that time.

Using 'han'ei' (reflect).

特定の家系に権力が集中することの弊害を論じる。

Discuss the harmful effects of power concentrating in specific family lines.

Using 'heigai' (harmful effect) and 'ronjiru' (discuss/argue).

家系を重んじる文化は、地方において根強く残っている。

The culture of valuing family lines remains deep-rooted in rural areas.

Using 'omonjiru' (to value) and 'neduyoku' (deep-rooted).

家系の系譜学的研究は、歴史学の重要な一分野である。

The genealogical study of family lines is an important branch of historical science.

Using 'keifugakuteki' (genealogical) and 'ichibun'ya' (a branch/field).

その家系は、幾多の政変を乗り越えて今日まで続いてきた。

That family line has survived numerous political upheavals and continued to this day.

Using 'ikuta no' (numerous) and 'seihen' (political upheaval).

家系という概念が個人のアイデンティティ形成に与える影響は看過できない。

The influence that the concept of 'family line' has on an individual's identity formation cannot be overlooked.

Using 'keisei' (formation) and 'kanka dekinai' (cannot be overlooked).

家系図の信憑性を裏付けるためには、多角的な史料批判が必要だ。

In order to support the authenticity of a family tree, multi-faceted historical criticism is necessary.

Using 'shinpousei' (authenticity/credibility) and 'takakuteki' (multi-faceted).

近世の家系意識は、封建的な主従関係と密接に結びついていた。

The consciousness of family lines in the early modern period was closely linked to feudal lord-vassal relationships.

Using 'kinsei' (early modern) and 'houkenteki' (feudal).

家系の断絶は、当時の武士階級にとって最大の不名誉とされた。

The extinction of a family line was considered the greatest dishonor for the samurai class of that time.

Using 'dandetsu' (extinction/severance) and 'fumeiyo' (dishonor).

遺伝学の進歩により、家系調査は新たな局面を迎えている。

With the progress of genetics, family line investigation is entering a new phase.

Using 'shinpou' (progress) and 'kyokumen' (phase/aspect).

家系という枠組みが、社会の流動性を阻害しているという指摘もある。

Some point out that the framework of 'family line' is hindering social mobility.

Using 'wakugumi' (framework) and 'sogai' (hinder/obstruct).

Synonyms

血筋家柄系譜血統出自門地系図末流

Antonyms

他人一代限り断絶無縁

Common Collocations

家系を遡る

家系に生まれる

家系図を作る

家系的な病気

由緒ある家系

家系が絶える

家系を調べる

家系ラーメン

名門の家系

家系を守る

Common Phrases

家系図

— A family tree or genealogical chart.

家系図を見ると、親戚の多さに驚く。

家系調査

— The act of researching one's family history or lineage.

家系調査の結果、先祖が武士だったことがわかった。

家系ラーメン

— A specific style of rich tonkotsu-shoyu ramen from Yokohama.

今日はこってりした家系ラーメンが食べたい。

家系的に

— Hereditarily or regarding one's lineage.

家系的に、私はお酒に弱い体質です。

由緒ある家系

— A distinguished or historic family line.

彼は由緒ある家系の生まれで、言葉遣いが丁寧だ。

医者の家系

— A family line where many members are doctors.

彼女は三代続く医者の家系に育った。

家系を継ぐ

— To succeed or carry on the family line.

彼は家系を継ぐために、修行を始めた。

家系が途絶える

— For a family line to come to an end.

子供がいないため、彼の家系はそこで途絶えた。

学者の家系

— A family line of scholars or academics.

学者の家系に生まれると、勉強が大変そうだ。

家系の誇り

— The pride of one's family line.

家系の誇りを傷つけるようなことはしたくない。

Often Confused With

家系 vs 家計 (Kakei)

Means household budget/finances. Identical pronunciation, different kanji.

家系 vs 家形 (Kakei)

Means the shape of a house. Very rare, but possible in architecture.

家系 vs 家族 (Kazoku)

Means current family members. Kakei is the lineage/history.

Idioms & Expressions

"家系に泥を塗る"

— To bring shame or disgrace to the family line.

犯罪を犯して家系に泥を塗ってしまった。

Formal/Serious

"家系を汚す"

— To stain or dishonor the family lineage.

彼の行動は、由緒ある家系を汚すものだ。

Formal

"家系を立て直す"

— To restore a family line that has fallen into decline.

没落した家系を立て直すために奔走する。

Formal

"家系の名に恥じない"

— To live in a way that does not shame the family name/line.

家系の名に恥じないよう、精一杯努力します。

Formal

"血は争えない"

— Lineage cannot be denied (similar to 'like father, like son'). Often used when seeing inherited traits.

彼も父親と同じで歌が上手い。家系というか、血は争えないね。

Informal

"門地家柄"

— Lineage and social standing (often used together as a set phrase).

門地家柄にこだわらず、人物本位で採用する。

Formal

"代々続く"

— Continuing for generations (frequently used with kakei).

代々続く農家の家系だ。

Neutral

"家系を絶やさない"

— To ensure the family line does not die out.

どんなことがあっても家系を絶やさないように努める。

Formal

"お家断絶"

— The extinction of a noble or samurai house (historical context).

その藩主は失態を犯し、お家断絶となった。

Historical

"名門の末裔"

— A descendant of a prestigious family line.

彼はかつての貴族、名門の末裔である。

Literary

Easily Confused

家系 vs 家計

Identical pronunciation (Kakei).

家計 (Kakei) is about money and budgeting (家計簿 - household account book). 家系 (Kakei) is about ancestors and lineage.

家計をやりくりする (To manage the budget) vs. 家系を調べる (To research lineage).

家系 vs 血筋

Similar meaning (bloodline).

血筋 focuses on the biological inheritance of traits or 'blood.' 家系 is more formal and refers to the 'house' as a historical system.

芸術家の血筋だ (Has the blood of an artist) vs. 医者の家系だ (From a family line of doctors).

家系 vs 家柄

Both relate to family background.

家柄 refers specifically to the social status, prestige, or 'quality' of the family. 家系 is the genealogical record itself.

家柄が良い (Good social standing) vs. 家系が古い (Old lineage).

家系 vs 系譜

Both mean lineage/genealogy.

系譜 is more academic and can apply to non-biological things like 'the genealogy of ideas.' 家系 is specific to family units.

思想の系譜 (The genealogy of thought) vs. 武士の家系 (Samurai lineage).

家系 vs 親戚

Both involve family relations.

親戚 (Shinseki) refers to relatives (cousins, uncles, etc.), usually living. 家系 refers to the vertical line of descent through time.

親戚が集まる (Relatives gather) vs. 家系が絶える (The lineage ends).

Sentence Patterns

私は[Noun]の家系に生まれました。

私は農家の家系に生まれました。

[Noun]は家系的なものです。

この体質は家系的なものです。

家系を遡ると[Person/Era]にたどり着く。

家系を遡ると戦国時代にたどり着く。

家系の[Noun]を重んじる。

家系の伝統を重んじる。

家系が[Verb-Passive]。

家系が絶やされることはなかった。

家系という枠組みにおいて[Clause]。

家系という枠組みにおいて、個人の自由は制限されていた。

家系の存続を[Verb]。

家系の存続を最優先事項とする。

家系図を見せてください。

おじいちゃんの家系図を見せてください。

Word Family

Nouns

家系図 (Family tree)

家系調査 (Lineage research)

家系学 (Genealogy as a study)

Verbs

家系を遡る (To trace lineage)

家系を継ぐ (To succeed lineage)

Adjectives

家系的な (Lineal/Hereditary)

家族 (Family)

先祖 (Ancestors)

子孫 (Descendants)

血筋 (Bloodline)

親戚 (Relatives)

How to Use It

frequency

Common in specific niches (food, health, history) but less frequent in daily small talk than 'family'.

Common Mistakes

Using 'kakei' for immediate family members. → Using 'kazoku'.
You don't go to the park with your 'kakei'; you go with your 'kazoku'.
Confusing '家系' (lineage) with '家計' (budget). → Check context or kanji.
Saying your 'lineage' is tight this month makes no sense; you mean your 'budget'.
Writing '系' as '系' without the top stroke. → Follow the correct stroke order.
Kanji errors can change the meaning or make the word unreadable.
Thinking 'Iekei' ramen is 'House' ramen literally. → It's lineage ramen.
It refers to the lineage of the shop, not just a 'home-style' ramen.
Using 'kakei' for animal breeds. → Use 'kettou'.
'Kakei' is almost exclusively for human family lines or metaphorical shop lineages.

Tips

Contextual Choice

Use 'kakei' when you want to sound more formal or when discussing history/biology. For personal feelings about family, stick to 'kazoku'.

Particle Pairing

Always remember the pattern '...の家系に生まれる'. It is the most natural way to describe someone's background.

Ramen Slang

If you are with friends and want to sound like a local, say 'Iekei ikou!' to suggest going to a Yokohama-style ramen shop.

Kanji Practice

Practice writing '系' often. It appears in many useful words like 'taikei' (system) and 'keitai' (mobile).

The 'Budget' Trap

In news reports about the economy, 'kakei' almost always means household budget (家計). Don't get confused!

Hospital Forms

When you see '家系' on a medical form, be ready to mention any hereditary illnesses in your family history.

Tracing Roots

If you want to trace your Japanese lineage, look for 'kakei chousa' services or visit the local city hall for your 'koseki'.

Nuance Check

Remember: Kakei = Lineage, Chisuji = Blood, Iegara = Status. Choose based on what part of the family history you want to emphasize.

The Thread of the House

The kanji 系 looks like a thread. Think of the thread connecting every member of your house (家) together.

Polite Inquiry

When asking about someone's distinguished background, using 'go-kakei' (adding the honorific 'go') is very polite.

Memorize It

Mnemonic

Think of 'Ka' as your 'Castle' (Home) and 'Kei' as the 'Chain' that connects you to the past. Your 'Kakei' is the 'Castle Chain' of your ancestors.

Visual Association

Visualize a long, golden thread (系) emerging from an old Japanese house (家) and connecting many people standing in a line back through time.

Word Web

Family Ancestry Lineage DNA History Heritage Roots Pedigree

Challenge

Try to describe your own 'kakei' using one sentence in Japanese. For example: '私の家系は農家です' (My family line consists of farmers).

Word Origin

The word is composed of two Chinese-derived kanji (Sino-Japanese). '家' (ka) originally depicted a roof over a pig, symbolizing a home or a breeding place, which evolved to mean 'house' or 'family.' '系' (kei) depicts threads being connected, symbolizing a system, connection, or lineage.

Original meaning: The 'system of the house' or the 'connection of the family.'

Sino-Japanese (Kango).

Cultural Context

Be careful when discussing 'kakei' with others, as some people may have complex or sensitive family histories (e.g., being adopted or having a 'broken' lineage).

In the West, 'family line' is often discussed in terms of 'genealogy' as a hobby or 'bloodline' in fantasy novels. In Japan, it has more formal, everyday implications, especially in medical and legal contexts.

Iekei Ramen (Yokohama style ramen lineage). Koseki (The official Japanese family registration system). Taiga Dramas (Historical TV shows where lineage is a major plot point).

Practice in Real Life

Real-World Contexts

Medical Checkup

家系に～はいますか？
家系的な病気
遺伝的な背景
家族歴

Genealogy Research

家系図を作る
ルーツを探る
戸籍を調べる
先祖を遡る

Ramen Dining

家系ラーメン
横浜家系
味濃いめ
麺硬め

History Class

名門の家系
武士の家系
家系の断絶
世襲制

Marriage Discussion

家系を重んじる
家柄が良い
親戚の集まり
家系を守る

Conversation Starters

"ご自身の家系について、詳しく調べたことはありますか？ (Have you ever researched your own family line in detail?)"

"あなたの家系には、何か特別な伝統や職業はありますか？ (Are there any special traditions or occupations in your family line?)"

"家系ラーメンの中で、一番好きな店はどこですか？ (Among Iekei Ramen shops, which one is your favorite?)"

"日本では家系図を作るサービスが人気ですが、興味はありますか？ (Genealogy services are popular in Japan; are you interested?)"

"家系的に、受け継いでいる性格や体質はありますか？ (Are there any personality traits or physical constitutions you've inherited through your lineage?)"

Journal Prompts

自分の家系について知っていることを書いてみましょう。 (Write about what you know concerning your family line.)

もし自分の家系図を作るとしたら、どこまで遡りたいですか？ (If you were to make a family tree, how far back would you want to go?)

家系ラーメンを食べた時の感想を詳しく描写してください。 (Describe your impressions of when you ate Iekei Ramen in detail.)

『家系』という言葉から連想するイメージは何ですか？ (What images do you associate with the word 'kakei'?)

家系や伝統を守ることの重要性について、自分の意見を述べてください。 (State your opinion on the importance of protecting family lines and traditions.)

Frequently Asked Questions

10 questions

No, that would sound strange. Use 'kazoku' for your immediate family. 'Kakei' is for your ancestors and the long history of your family line.

Metaphorically, yes! It refers to a 'lineage' of shops that all trace their training or style back to a single original shop (Yoshimuraya).

A 'kakeizu' is a family tree chart. It's the visual representation of your 'kakei'.

It's common in specific situations: at the doctor's office, when talking about history, or when discussing ramen styles. It's not used every day like 'home' or 'food'.

Context is key. If you hear 'saving money' or 'shopping,' it's budget. If you hear 'ancestors,' 'samurai,' or 'hereditary,' it's lineage.

Technically yes, but 'kettou' (bloodline/pedigree) is much more common for animals like dogs or horses.

It can be sensitive. It's better to ask about their 'shusshin' (hometown/origin) or 'kazoku' (family) first unless you have a specific reason to discuss lineage.

It means a family line that has continued for generations after generations.

It is written as 家 (House) and 系 (System/Lineage).

Indirectly. It refers to the family that runs the business, but the business itself is 'kagyou' (family business).

Test Yourself 190 questions

writing

Write 'family tree' in Japanese.

Well written! Good try! Check the sample answer below.

Kakeizu.