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B1 adverb 9 min de lecture

いっぱい

ippai

Entraîne-toi Exemples Notes et astuces いっぱい en 30 secondes

Explication いっぱい in your Level:

At the A1 level, you learn 'ippai' as a simple way to say 'a lot' or 'full.' You will mostly use it to talk about food and drink. The most important phrase to remember is 'Onaka ga ippai' (I am full). You might also see it written as 一杯 when you order one cup of coffee or tea in a restaurant. At this stage, don't worry too much about the complex grammar; just focus on using it to describe being full after a meal or seeing many things, like 'Hana ga ippai' (Many flowers). It is a very helpful word because it replaces the need for complex counters when you are just starting out. If you don't know the counter for something, you can often just say 'ippai' to mean 'many' and people will understand you perfectly.

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At the A2 level, you begin to use 'ippai' as an adverb to modify actions. You might say 'Ippai tabemashita' (I ate a lot) or 'Ippai benkyou shimashita' (I studied a lot). You also start to use the particle 'de' to describe what something is full of, such as 'Hito de ippai' (Full of people). You should also be aware of the difference between 'ippai' (many/full) and 'takusan' (many). While they are similar, 'ippai' often feels more conversational. You might also encounter 'ippai' in time expressions like 'kyou-ippai' (by the end of today). This is a very common way to set deadlines in daily life and simple work tasks.

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As a B1 learner, you should be comfortable using 'ippai' in various grammatical roles: as a noun, adverb, and with the 'no' particle. You will use it to express more abstract concepts, such as being 'full of confidence' (jishin mappai/ippai) or 'full of memories' (omoide ga ippai). You should also understand the pitch accent difference between 'one cup' (一杯) and 'full/a lot' (いっぱい). At this level, you start to see 'ippai' used in more idiomatic ways, like 'seiippai' (with all one's might). You are expected to distinguish between 'ippai' and more formal synonyms like 'tairyou' or 'tasuu' and choose the appropriate one based on the situation.

At the B2 level, you use 'ippai' to add emotional nuance to your speech. You understand that 'ippai' can imply a sense of being overwhelmed or reaching a limit. You might use it in complex sentences like 'Kansha no kimochi de ippai desu' (I am filled with gratitude) to sound more natural and sincere. You also understand its use in business contexts for deadlines (e.g., 'kongetsu-ippai de taishoku suru' - retiring at the end of this month). You can handle the ambiguity of the word in fast-paced conversation, knowing immediately whether 'ippai' refers to 'one cup' or 'a lot' based on the subtle context of the discussion.

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At the C1 level, you have a nuanced understanding of 'ippai' and its related kanji compounds. You can use it in sophisticated metaphorical ways and understand its role in literature and media to create atmosphere. You recognize the historical development of the word from a simple counter to a broad expression of abundance. You are also capable of identifying when 'ippai' is used as a slangy intensifier in casual youth speech. Your use of 'ippai' is seamless, and you can switch between 'ippai,' 'takusan,' 'juubun,' and 'mansai' to precisely match the register and tone of your communication, whether it's a formal lecture or a casual chat with friends.

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At the C2 level, 'ippai' is a tool you use with native-like precision. you understand the deepest etymological roots and how they influence modern usage. You can appreciate the word's flexibility in poetry and high-level prose, where it might be used to describe an 'overflowing' of time or space. You are aware of regional dialects where 'ippai' might have slightly different nuances or pitch patterns. You can use the word to create subtle irony or emphasis in your speech. Essentially, 'ippai' is no longer a 'vocabulary word' for you; it is a versatile building block that you use instinctively to express the full spectrum of abundance and capacity in the Japanese language.

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Entraîne-toi Exemples Notes et astuces

いっぱい en 30 secondes

Ippai (いっぱい) primarily means 'full' or 'a lot.' It is extremely common in daily Japanese for describing satiety, crowds, and abundance.
Grammatically, it functions as an adverb (ippai taberu), a noun (yotei ga ippai), or a noun modifier (ippai no omoide).
It originates from the kanji 一杯, meaning 'one cup,' which is still used when ordering drinks or counting single servings.
It also serves as a time-limit marker, meaning 'until the end of' a specific period, such as 'kyou-ippai' (until the end of today).

The Japanese word いっぱい (ippai) is one of the most versatile and frequently used terms in daily conversation. At its core, it describes a state where a container, space, or even an abstract concept is filled to its capacity. While beginners often learn it simply as 'a lot' or 'many,' its nuance extends far deeper into the physical and psychological realms of 'fullness.' Whether you are talking about a stomach full of sushi, a schedule packed with meetings, or a heart overflowing with gratitude, this word is your go-to expression.

Physical Fullness: This is the most literal usage. It refers to a glass filled to the brim with water or a room crowded with people. It implies that there is no more room for anything else to be added. For example, 'Kaban ga ippai' means the bag is full.
Dietary Satiety: In a dining context, it is the standard way to say you are full. Unlike the English 'I am stuffed,' which can sometimes sound a bit informal, 'Onaka ga ippai' is perfectly acceptable in almost all social situations, from casual lunches to polite dinners.
Quantity and Abundance: When used as an adverb, it functions similarly to 'takusan' (a lot). However, 'ippai' often carries a more subjective, emotional weight. It emphasizes the feeling of abundance rather than just a numerical count.

お腹がいっぱいなので、もう食べられません。(Onaka ga ippai na no de, mou taberaremasen.)

Translation: My stomach is full, so I can't eat any more.

The word's origin is actually rooted in counting. The kanji representation is 一杯, where 'ichi' (one) and 'hai' (counter for cups/glasses) combine. Originally, it literally meant 'one cup.' Over time, the meaning evolved from 'one full cup' to the general concept of being 'full' or 'having a lot.' This historical context helps explain why it is used for both volume and quantity.

バケツに水をいっぱい入れました。(Baketsu ni mizu o ippai iremashita.)

Translation: I put a lot of water (filled it up) in the bucket.

Time and Limits: Ippai can also refer to the end of a period. 'Kongetsu ippai' means 'until the end of this month.' This usage is vital for deadlines and scheduling in Japan.

In summary, 'ippai' is a foundational word that bridges the gap between physical capacity and quantitative abundance. It is essential for expressing basic needs (hunger), describing scenes (crowds), and managing time (deadlines). Mastery of this word allows for more natural, fluid Japanese communication.

Using いっぱい (ippai) correctly requires understanding its grammatical flexibility. It can function as a noun, an adverb, or even a 'no-adjective' (adjectival noun) depending on the sentence structure. This versatility is what makes it so powerful but also slightly tricky for learners who are used to strict word categories.

As an Adverb (Modifying Verbs): When placed before a verb, it describes the intensity or quantity of the action. For example, 'ippai asobu' (play a lot) or 'ippai neru' (sleep a lot). In this role, it doesn't need any particles following it.
As a Predicate (Describing a State): You can end a sentence with 'ippai da' or 'ippai desu' to describe a state. 'Heya wa hito de ippai desu' (The room is full of people). Here, the particle 'de' is often used to indicate what the space is full of.
Modifying Nouns with 'No': To describe a noun, you often use 'ippai no'. For example, 'ippai no omoide' (a lot of memories). This turns the adverbial concept into a descriptive attribute for the noun that follows.

この公園には、花がいっぱい咲いています。(Kono kouen ni wa, hana ga ippai saite imasu.)

Translation: There are many flowers blooming in this park.

One of the most common mistakes is confusing 'ippai' with 'takusan.' While they are often interchangeable, 'ippai' has a stronger sense of reaching a limit or being 'full' (100%), whereas 'takusan' just means a large quantity (which could be 70%, 80%, or 150%). If you say 'mizu o ippai kudasai,' it could mean 'give me a lot of water' or 'give me one cup of water' depending on the context and pitch accent.

今週は予定がいっぱいで、会えません。(Konshuu wa yotei ga ippai de, aemasen.)

Translation: My schedule is full this week, so I can't meet you.

Finally, consider the emotional nuance. Using 'ippai' often sounds more conversational and 'warm' than more clinical words for quantity. It suggests a sense of satisfaction or overwhelming presence, which is why it's so common in expressions of gratitude like 'kansha no kimochi de ippai' (filled with feelings of gratitude).

In Japan, you will encounter いっぱい (ippai) from the moment you step into a restaurant to the time you discuss work deadlines. It is a 'high-utility' word that permeates every level of society. Here are the most common real-world scenarios where you'll hear it.

At Restaurants and Izakayas: The most obvious place is when ordering a drink. 'Toriaezu nama ippai!' (One draft beer for now!). Note that here it specifically means 'one cup/glass' because of the kanji 一杯. After the meal, the server might ask if you are finished, and you'd reply 'Onaka ippai desu!'
Commuting and Crowds: During rush hour, you might hear a station attendant or a fellow passenger say 'Densha ga ippai desu' (The train is full). It conveys that no more people can fit inside.
In the Office: Colleagues will use it to describe their workload. 'Shigoto ga ippai atte, taihen desu' (I have so much work, it's tough). It's also used for deadlines: 'Kyou-ippai ni dashite kudasai' (Please submit it by the end of today).

もういっぱい飲みますか？(Mou ippai nomimasu ka?)

Translation: Would you like another drink? (lit. one more cup)

In Japanese media, such as anime or drama, characters often use 'ippai' to express emotional states. A protagonist might say 'Genki ippai!' (Full of energy!) or 'Yume ga ippai' (Full of dreams). It adds a youthful, energetic, or sincere tone to the dialogue. Similarly, in children's songs and books, 'ippai' is used to describe the wonders of the world, like 'Hoshi ga ippai' (So many stars).

今日いっぱいでこの仕事は終わりです。(Kyou ippai de kono shigoto wa owari desu.)

Translation: This job finishes at the end of today.

You will also see 'ippai' used in marketing. Signs might say 'Oishisa ippai!' (Full of deliciousness!) or 'Service ippai' (Full of service/discounts). It creates an image of generosity and abundance that appeals to customers. Understanding these contexts helps you realize that 'ippai' is not just a word for volume, but a word for 'maximum value.'

While いっぱい (ippai) is a friendly and common word, there are several pitfalls that English speakers often fall into. These range from grammatical errors to subtle misuses of nuance.

Confusing 'One Cup' with 'A Lot': Because 'ippai' can mean both 'one cup' (一杯) and 'a lot/full' (いっぱい), context is king. If you say 'Coffee ippai kudasai,' a waiter will bring you one cup. If you say 'Kaban ni coffee ga ippai koboreta,' it means a lot of coffee spilled. Pitch accent also differs slightly: 'one cup' usually has a drop after 'i', whereas 'a lot' is more flat.
Overusing it in Formal Writing: In academic papers or very formal business reports, 'ippai' is usually replaced by more formal terms like 'tasuu' (large number), 'tairyou' (large quantity), or 'man-in' (full house). Using 'ippai' in a legal contract would sound quite strange and unprofessional.
The 'No' Particle Trap: Learners often forget when to use 'no'. Remember: [Noun] + [ga] + [ippai] (The noun is full) vs. [Ippai] + [no] + [Noun] (A lot of nouns). Forgetting the 'no' when modifying a noun is a very common B1-level mistake.

❌ 彼はいっぱい本を持っています。(Kare wa ippai hon o motte imasu.) - Sounds slightly unnatural.
✅ 彼は本をいっぱい持っています。(Kare wa hon o ippai motte imasu.)

Note: Adverbs in Japanese usually prefer to be closer to the verb or follow the object.

Another mistake is using 'ippai' for things that cannot be 'full' or 'counted.' For example, you wouldn't use 'ippai' to describe the size of a building (use 'ookii' instead). 'Ippai' describes the *content* or *quantity*, not the physical dimensions of the object itself.

Lastly, be careful with the 'time' usage. 'Kyou ippai' means 'until the end of today.' Some learners mistakenly think it means 'all day today' (which would be 'ichinichi-juu'). While similar, 'ippai' emphasizes the limit/deadline of the day rather than the duration.

To truly master Japanese, you need to know when to use いっぱい (ippai) and when to reach for a more specific synonym. Japanese has a rich vocabulary for 'fullness' and 'quantity,' each with its own flavor.

Takusan (たくさん): The most common alternative. 'Takusan' focuses on the large quantity. 'Ippai' focuses more on the space being filled or the limit being reached. You can have 'takusan' of something without the container being 'ippai' (full).
Mansai (満載): A more formal/literary term meaning 'fully loaded.' Often used for vehicles (trucks full of goods) or metaphorically for things like 'a book full of useful info' (yakudatsu jouhou ga mansai).
Morimori (もりもり): An onomatopoeia for eating heartily or muscles swelling. Use this when you want to emphasize the energy and vigor of 'filling up.'

比較:
1. 友達がたくさんいます。(I have many friends.)
2. 友達でいっぱいです。(The place is full of friends/I am surrounded by many friends.)

When talking about being full from food, you might also hear 'manpuku' (満腹). This is a noun/na-adjective that literally means 'full stomach.' It sounds a bit more formal or descriptive than the conversational 'onaka ippai.' In a medical or fitness context, you might hear 'houwa' (飽和), meaning 'saturation,' used for when something cannot absorb any more.

In formal writing, instead of 'ippai no hito' (a lot of people), use 'tasuu no hitobito.' Instead of 'ippai no mizu,' use 'tairyou no mizu.' Choosing the right level of formality is key to sounding natural in different environments. By understanding these alternatives, you can express 'fullness' with precision and style.

How Formal Is It?

Le savais-tu ?

The evolution from 'one cup' to 'a lot' occurred because a 'full cup' was seen as the standard unit of a complete serving. Over time, the concept of 'completeness' or 'fullness' was abstracted to mean a large quantity in general.

Guide de prononciation

UK ɪˈpaɪ

US ɪˈpaɪ

The pitch accent is usually 'Atamadaka' (Type 1) for 'one cup' (I-ppai) and 'Heiban' (Type 0) for 'full/a lot' (i-PPAI).

Rime avec

oppai (slang) shippai (failure) teppai (abolition) kanpai (toast) shinpai (worry) kippai (resolutely) happai (eight cups) juuppai (ten cups)

Erreurs fréquentes

Failing to pause for the small 'tsu' (っ), making it sound like 'ipai'.
Using the wrong pitch accent, confusing 'one cup' with 'a lot'.
Mispronouncing the 'i' as a long English 'I' instead of the Japanese 'ee' sound.
Over-emphasizing the final 'i'.
Ignoring the context which clarifies the meaning despite similar sounds.

Niveau de difficulté

Lecture 2/5

Hiragana is easy; kanji 一杯 is basic, but context is needed to distinguish meanings.

Écriture 2/5

Easy to write in hiragana; kanji is also simple (1st-grade level).

Expression orale 3/5

Requires mastering the small 'tsu' pause and pitch accent.

Écoute 3/5

Must distinguish between 'one cup' and 'a lot' based on context and pitch.

Quoi apprendre ensuite

Prérequis

たくさんお腹飲む一杯

Apprends ensuite

たっぷりぎっしり満足限界溢れる

Avancé

飽和充填満載横溢充足

Grammaire à connaître

Counters (助数詞)

一杯 (ippai), 二杯 (nihai), 三杯 (sanbai)...

Adverbs of Quantity

たくさん (takusan), 少し (sukoshi), いっぱい (ippai).

The particle 'de' for content

水でいっぱいのバケツ (A bucket full of water).

No-adjectives

いっぱいの思い出 (Many memories).

Compound nouns with time

今年いっぱい (Until the end of this year).

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Exemples par niveau

お腹がいっぱいです。

I am full (stomach).

Onaka (stomach) + ga (subject particle) + ippai (full) + desu (is).

コーヒーを一杯ください。

One cup of coffee, please.

Here, ippai is written with kanji 一杯 meaning 'one cup'.

公園に花がいっぱいあります。

There are many flowers in the park.

Ippai acts as an adverb meaning 'a lot'.

水がいっぱいです。

The water is full (in the glass).

Describes a physical state of fullness.

猫がいっぱいいます。

There are many cats.

Used for living things to mean 'many'.

本がいっぱいあります。

There are many books.

Used for inanimate objects.

プレゼントがいっぱいです。

There are many presents.

Simple noun + ga + ippai structure.

人がいっぱいです。

There are many people / It's crowded.

Commonly used to describe crowds.

昨日はお酒をいっぱい飲みました。

I drank a lot of alcohol yesterday.

Ippai as an adverb modifying the verb 'nomimashita'.

今日は宿題がいっぱいあります。

I have a lot of homework today.

Ippai describing quantity of work.

このカバンはいっぱいで入りません。

This bag is full and (nothing more) will go in.

Ippai used to indicate capacity limit.

いっぱい食べてくださいね。

Please eat a lot, okay?

Ippai used to encourage someone to do an action 'a lot'.

今週はいっぱいいそがしいです。

I am very busy all through this week.

Ippai used to emphasize the degree of busyness.

バケツにいっぱいの水があります。

There is a bucket full of water.

Ippai used as a noun-modifier with 'no'.

今日いっぱいで仕事が終わります。

The work finishes by the end of today.

Ippai used as a time limit/deadline.

元気いっぱいの子供たち。

Children full of energy.

Ippai used to describe an abstract quality (energy).

思い出がいっぱいつまった写真。

A photo packed with many memories.

Ippai modifying the verb 'tsumatta' (packed/stuffed).

この街は魅力がいっぱいです。

This town is full of charm.

Abstract usage: 'full of charm'.

精一杯頑張ります。

I will do my very best (with all my might).

Seiippai is a common compound meaning 'with all one's effort'.

コップ一杯の水を飲みました。

I drank one cup of water.

Kanji usage 一杯 for a specific measurement.

彼は自信いっぱいに話しました。

He spoke with a lot of confidence.

Ippai ni used as an adverbial phrase.

今月いっぱいでこの店は閉まります。

This shop will close at the end of this month.

Time limit usage: 'Kongetsu ippai'.

夢がいっぱいの計画ですね。

That's a plan full of dreams, isn't it?

Using 'no' to connect 'yume' and 'keikaku' through 'ippai'.

会場は人でいっぱいになった。

The venue became full of people.

Ippai ni naru (to become full).

感謝の気持ちでいっぱいです。

I am filled with feelings of gratitude.

Standard emotional expression of thanks.

腹一杯食べることが夢だった。

Eating one's fill was a dream.

Hara-ippai is a slightly more masculine/rough way to say 'stomach full'.

予定がいっぱいで、調整が難しいです。

My schedule is full, so adjustment is difficult.

Business context for a packed schedule.

彼は胸がいっぱいになって言葉が出なかった。

His heart was so full (with emotion) that he couldn't speak.

Mune ga ippai (heart/chest is full) refers to being overwhelmed by emotion.

可能性がいっぱいの新製品です。

It's a new product full of possibilities.

Abstract marketing language.

今週いっぱい待ってもらえますか？

Can you wait until the end of this week?

Requesting a deadline extension using 'ippai'.

バケツ一杯分の泥を運びました。

I carried one bucket's worth of mud.

Ippai-bun refers to the 'amount' of one full container.

彼女の部屋は本でいっぱいだ。

Her room is filled with books.

Describing an environment overflowing with items.

精一杯の誠意を見せるべきだ。

You should show your utmost sincerity.

Seiippai no (utmost) modifying a noun.

この論文は示唆に富み、知的好奇心がいっぱいになる。

This paper is rich in suggestions and fills one's intellectual curiosity.

Formal/Academic abstract usage.

彼は不満がいっぱいの顔をしていた。

He had a face full of dissatisfaction.

Describing facial expressions with 'ippai'.

一分一秒を精一杯生きる。

To live every minute and second to the fullest.

Philosophical usage of 'seiippai'.

その場しのぎの言い訳がいっぱいだ。

It's full of stopgap excuses.

Metaphorical fullness of negative concepts.

今年いっぱいで現役を引退する意向だ。

He intends to retire from active service by the end of this year.

Formal news reporting style for deadlines.

彼女の言葉には優しさがいっぱいに溢れていた。

Her words were overflowing with kindness.

Combining 'ippai' with 'afureru' (to overflow) for emphasis.

コップ一杯の水にも感謝を忘れない。

Not forgetting to be grateful even for a single cup of water.

Using the literal 'one cup' to emphasize minimalism.

万感の思いがいっぱいに込み上げてきた。

A flood of all sorts of emotions came welling up.

Highly literary expression 'Bankan no omoi' (flood of emotions).

法案は問題がいっぱいで、再考の余地がある。

The bill is full of problems and has room for reconsideration.

Formal political/legal context.

彼は野心いっぱいに、新たな事業に乗り出した。

Full of ambition, he embarked on a new business venture.

Adverbial usage in a narrative/biographical context.

人生の辛酸をなめ尽くし、今はただ安らぎでいっぱいだ。

Having tasted all the bitterness of life, I am now just full of peace.

Sophisticated contrast of life experiences.

その詩は、自然への畏敬の念がいっぱいに込められている。

That poem is filled with a sense of awe for nature.

Describing the 'intent' or 'content' of artistic work.

期限がいっぱいいっぱいで、これ以上の延期は不可能だ。

The deadline is at its absolute limit; further delay is impossible.

Ippai-ippai is a colloquial but strong expression for being at the limit.

器いっぱいに盛られた料理が、彼の寛大さを物語っていた。

The food piled high in the bowl told the story of his generosity.

Descriptive prose using 'ippai' to characterize a person.

虚栄心がいっぱいの言動は、周囲の反感を買うだけだ。

Behavior full of vanity only earns the antipathy of those around you.

Abstract moralizing/social commentary.

Collocations courantes

お腹がいっぱい

精一杯

胸がいっぱい

予定がいっぱい

今日いっぱい

夢がいっぱい

人でいっぱい

元気いっぱい

魅力がいっぱい

思い出がいっぱい

Phrases Courantes

もう一杯

— One more cup/glass. Used when ordering seconds of a drink.

ビールをもう一杯ください。

お腹いっぱい

— I'm full. The standard way to end a meal.

ああ、お腹いっぱい！ごちそうさま。

いっぱいっぱい

— At one's limit. Used when stressed or overloaded.

仕事がいっぱいいっぱいで、余裕がない。

腹一杯

— To one's heart's content (usually regarding food). Slightly rough.

今日は腹一杯食べるぞ！

力いっぱい

— With all one's strength.

力いっぱいドアを押した。

自信いっぱい

— Full of confidence.

彼は自信いっぱいに答えた。

今月いっぱい

— Until the end of this month.

今月いっぱいで退職します。

遊びがいっぱい

— Full of fun/play.

この公園は遊びがいっぱいだ。

不満がいっぱい

— Full of complaints/dissatisfaction.

彼は不満がいっぱいの様子だ。

サービスいっぱい

— Full of extra services or discounts.

この店はサービスいっぱいだね。

Souvent confondu avec

いっぱい vs たくさん (takusan)

Ippai implies reaching a limit/fullness; Takusan just implies a large number.

いっぱい vs いっぱい (ippai - one cup)

Same sound, different kanji/accent. Context usually makes it clear.

いっぱい vs いっぱいっぱい (ippai-ippai)

Doubling the word changes the meaning to 'being at one's limit/stressed'.

Expressions idiomatiques

"胸がいっぱいになる"

— To be overwhelmed with emotion (joy, sadness, gratitude).

彼女の優しさに、胸がいっぱいになった。

Neutral

"精一杯"

— Doing something with all the effort one can muster.

今の私にできる精一杯のことです。

Neutral

"目一杯"

— To the fullest extent possible; as much as one can.

夏休みを目一杯楽しむ。

Informal

"お腹がいっぱいになると眠くなる"

— A common observation: getting sleepy once full.

お腹がいっぱいになると眠くなるのは自然だ。

Neutral

"腹一杯（はらいっぱい）"

— Doing something until completely satisfied (often used for food or sleep).

昨日は腹一杯寝た。

Informal

"いっぱいいっぱい"

— Being so busy or stressed that one cannot take on anything more.

家事と育児でいっぱいいっぱいだ。

Informal

"夢がいっぱい"

— Having many hopes and dreams for the future.

若者は夢がいっぱいだ。

Neutral

"口いっぱいに頬張る"

— To stuff one's mouth full of food.

ケーキを口いっぱいに頬張った。

Neutral

"元気いっぱい"

— Overflowing with energy and vitality.

子供たちが元気いっぱいに走り回る。

Neutral

"いっぱいくわされる"

— To be completely deceived or tricked (idiomatic use of 'one cup').

詐欺師にいっぱいくわされた。

Informal

Facile à confondre

いっぱい vs たっぷり

Both mean 'a lot'.

Tappuri means 'plenty' or 'generous amount', often used for time or sauce. Ippai means 'full'.

ソースをたっぷりかける (Pour plenty of sauce).

いっぱい vs ぎっしり

Both mean 'full'.

Gisshiri specifically means 'tightly packed' with no gaps, like a suitcase or a schedule.

予定がぎっしりだ (Schedule is jam-packed).

いっぱい vs 満載

Both mean 'full'.

Mansai is formal and often refers to digital content or cargo.

新機能が満載だ (Full of new features).

いっぱい vs 十分

Both can imply 'enough'.

Juubun means 'sufficient'. Ippai means 'maximum/full'.

十分な睡眠 (Sufficient sleep).

いっぱい vs 多数

Both mean 'many'.

Tasuu is the formal/academic word for 'a large number of'.

多数決 (Majority vote).

Structures de phrases

[Noun] がいっぱいです。

本がいっぱいです。

[Noun] をいっぱい [Verb]。

ご飯をいっぱい食べました。

[Time] いっぱいで [Action]。

今日いっぱいで終わります。

[Noun] でいっぱいになる。

会場が客でいっぱいになった。

いっぱいの [Noun]。

いっぱいの笑顔。

精一杯 [Verb]。

精一杯生きていく。

[Abstract Noun] で胸がいっぱいになる。

感謝の気持ちで胸がいっぱいになった。

[Noun] がいっぱいいっぱいだ。

精神的にいっぱいいっぱいだ。

Famille de mots

Noms

いっぱい (fullness/quantity)

満腹 (satiety)

一杯 (one cup)

Verbes

いっぱいにする (to fill up)

いっぱいになる (to become full)

Adjectifs

いっぱいの (full/many - no-adjective)

Apparenté

たくさん

たっぷり

ぎっしり

満載

溢れる

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Comment l'utiliser

frequency

Extremely high in spoken Japanese; high in casual writing; moderate in formal writing.

Erreurs courantes

Onaka ippai desu (meaning 'I want one cup of stomach'). → Onaka ippai desu (meaning 'I am full').
While 'ippai' can mean one cup, with 'onaka', it always means 'full'. Don't overthink the 'one cup' meaning.
Ippai hito ga imasu. → Hito ga ippai imasu.
In Japanese, adverbs usually follow the particle 'ga' or 'o'. Placing it at the very start is possible but sounds less natural.
Ippai hon. → Ippai no hon.
When 'ippai' modifies a noun directly, you must use the 'no' particle.
Kyou ippai (meaning 'all day today'). → Kyou ippai (meaning 'until the end of today').
Ippai emphasizes the limit or deadline, not the total duration of the day.
Using 'ippai' in a legal document. → Using 'tasuu' or 'tairyou'.
'Ippai' is too conversational for formal legal or medical documents.

Astuces

Dining Etiquette

When finished eating, saying 'Onaka ippai desu' followed by 'Gochisousama deshita' is the perfect way to show appreciation.

The 'No' Rule

Remember: Ippai + no + Noun. 'Ippai no mizu' (A lot of water). Without 'no', it's usually an adverb or predicate.

The Silent Beat

The small 'tsu' (っ) is a pause. If you skip it, you're saying 'ipai,' which isn't a word. Practice 'i...pai!'

Deadlines

Use 'Period + ippai' to set deadlines. 'Kongetsu ippai' is a very professional way to say 'by the end of this month'.

Emotional Fullness

Don't just use it for objects. Use it for feelings! 'Kansha de ippai' (Full of gratitude) sounds very sincere.

Ippai vs Takusan

Use 'Ippai' when you want to emphasize that something is 'filled up' or 'at the limit.' Use 'Takusan' for general large numbers.

Ordering Drinks

When you see 一杯 on a menu, it means one serving. Two servings would be 二杯 (nihai).

Utmost Effort

Learn 'Seiippai.' It's one of the most respected concepts in Japanese work culture—doing your absolute best.

Being Stressed

If someone asks how you are and you're overwhelmed, 'Ippai-ippai desu' tells them you're at your capacity limit.

Abstract Nouns

Ippai works great with abstract nouns like 'yume' (dreams), 'kibou' (hope), and 'fuan' (anxiety).

Mémorise-le

Moyen mnémotechnique

Think of 'I-Pai' as 'I want a Pie.' If you eat the whole pie, your stomach is Ippai (full) and you've had Ippai (a lot) of food!

Association visuelle

Imagine a glass of water filled to the very top, with one single drop about to spill over. That 'limit' is the essence of Ippai.

Word Web

Water Stomach Crowd Cup Limit Schedule Dreams Gratitude

Défi

Try to use 'ippai' in three different ways today: once for food, once for a quantity of things, and once for a deadline (time).

Origine du mot

Derived from the Middle Japanese combination of 'ichi' (one) and 'hai' (a counter for cups or bowls).

Sens originel : Literally 'one full cup' or 'one bowlful'.

Japonic

Contexte culturel

While 'Onaka ippai' is polite, using 'Hara ippai' (stomach full) can sound a bit masculine or crude depending on the company.

English speakers often use 'full' only for capacity and 'a lot' for quantity. Japanese uses 'ippai' for both, which can be confusing at first.

The song 'Omoide ga Ippai' by H2O (a famous anime theme). The phrase 'Genki Ippai' used by Anpanman. Marketing slogans for food products like 'Oishisa Ippai'.

Pratique dans la vie réelle

Contextes réels

Dining

お腹がいっぱいです。
もう一杯ください。
コップ一杯の水。
腹一杯食べる。

Work

予定がいっぱいです。
仕事がいっぱいある。
今日いっぱいで終わる。
手一杯で手伝えません。

Emotions

感謝でいっぱいです。
胸がいっぱいになる。
自信いっぱいに話す。
不安でいっぱいだ。

Nature

花がいっぱい咲いている。
星がいっぱい見える。
緑がいっぱいの公園。
ゴミがいっぱい落ちている。

Transportation

電車が人でいっぱいです。
駐車場がいっぱいです。
荷物がいっぱい載っている。
バスがいっぱいだ。

Amorces de conversation

"お腹がいっぱいになりましたか？ (Are you full?)"

"最近、仕事がいっぱいあって大変ですか？ (Have you been busy with a lot of work lately?)"

"この街で、花がいっぱい見られる場所はどこですか？ (Where can I see many flowers in this town?)"

"子供の頃、夢がいっぱいありましたか？ (Did you have many dreams when you were a child?)"

"今週はいっぱい予定がありますか？ (Do you have a lot of plans this week?)"

Sujets d'écriture

今日一日で、一番「いっぱい」だと感じた瞬間は何ですか？ (What was the moment you felt most 'full' today?)

あなたのカバンの中には、今何がいっぱい入っていますか？ (What is your bag full of right now?)

将来、どんな思い出をいっぱいにしたいですか？ (What kind of memories do you want to be full of in the future?)

あなたが「精一杯」頑張っていることは何ですか？ (What are you doing with all your might?)

最近、感謝の気持ちでいっぱいになった出来事はありますか？ (Is there an event recently that made you full of gratitude?)

Questions fréquentes

10 questions

Yes, you can say 'Hito ga ippai' to mean 'There are many people' or 'It's crowded.' It is very natural.

Yes, it is perfectly polite. If you want to be extra formal, you could say 'Manpuku desu,' but 'Onaka ga ippai desu' is standard.

いっぱい (hiragana) usually means 'a lot' or 'full.' 一杯 (kanji) usually means 'one cup' of a liquid or food.

You use the doubled version: 'Ippai-ippai desu.' This means you are too busy or stressed to handle more.

No. When used as an adverb, it doesn't need a particle (e.g., 'Ippai taberu'). When modifying a noun, it uses 'no' (e.g., 'Ippai no hito').

Yes, 'ippai' is a general word for quantity and doesn't care about the shape of the objects, unlike specific counters.

It means 'until the end of today.' It is a common way to set a deadline.

Yes, especially phrases like 'Genki ippai!' (Full of energy) or 'Yume ippai!' (Full of dreams).

Sometimes. For example, 'Ippai isogashii' can mean 'very busy,' though 'totemo isogashii' is more standard.

Younger people might use 'meippai' or 'ippai-ippai' in more dramatic ways to express being overwhelmed.

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