Terrain refers to the physical configuration of the land and its surface features.
Word in 30 Seconds
- Refers to the physical features of the Earth's surface.
- Used in geography, architecture, and disaster prevention contexts.
- Describes natural formations like mountains, valleys, and plains.
概要
地形（ちけい）は、地球表面の起伏や形状を指す言葉です。平地、山地、台地、盆地、海岸線など、自然環境の物理的な特徴をすべて含みます。地質学的なプロセス（侵食や堆積、プレートの移動など）によって長い時間をかけて形成されます。
類語との比較
「地勢（ちせい）」は、軍事や地理的な勢力関係を含む広い意味での地形を指すことが多いです。「地貌（ちぼう）」は、地形の姿や形に焦点を当てたやや硬い表現です。日常会話では圧倒的に「地形」が使われます。
Examples
この辺りは地形が平坦で歩きやすい。
everydayThis area has flat terrain and is easy to walk on.
複雑な地形が軍事上の防壁となった。
formalThe complex terrain served as a military barrier.
地形を生かした公園のデザインを考えた。
informalI designed the park to make the most of the terrain.
地震による地形の変化を調査する。
academicInvestigating changes in the terrain caused by the earthquake.
Common Collocations
Common Phrases
地形の変化
change in terrain
地形図を見る
read a topographic map
地形に恵まれる
blessed with favorable terrain
Often Confused With
Refers more to the strategic or general condition of the land, often used in historical or military contexts.
Refers to the geological layers beneath the surface, not the shape of the surface itself.
Grammar Patterns
How to Use It
Usage Notes
The word is neutral and widely used in both formal and informal contexts. It is a standard term in geography and geology. When discussing land for construction, it is the most common term used to describe site conditions.
Common Mistakes
Beginners sometimes confuse it with '地面' (ground surface). Remember that '地形' refers to the large-scale shape of the landscape, while '地面' refers to the surface you are standing on.
Tips
Use with descriptive adjectives
Combine '地形' with adjectives like '複雑な' (complex) or '平坦な' (flat) to describe areas clearly. This helps in both academic and casual conversations.
Don't confuse with '地層'
While '地形' refers to surface shape, '地層' refers to underground strata or soil layers. Keep the distinction between surface and sub-surface in mind.
Japan's unique geography
Japan is known for its mountainous terrain. Understanding this word helps explain why Japanese cities are often concentrated in small flat areas.
Word Origin
Derived from Sino-Japanese characters. '地' (earth/ground) and '形' (form/shape). It has been used in standard Japanese to describe geography since the late 19th century.
Cultural Context
In Japan, due to the mountainous nature of the country, '地形' is a crucial concept in daily life, especially regarding disaster awareness and land development.
Memory Tip
Think of '地' (earth) + '形' (shape). It is literally the 'shape of the earth'.
Frequently Asked Questions
4 questions「土地」は所有権や利用目的を含む場所そのものを指すことが多いです。一方、「地形」は山や谷といった物理的な「形」に焦点を当てています。
地図や「地形図」を確認するのが一般的です。最近では地理院地図などのオンラインツールで詳細な標高や傾斜を確認できます。
非常に深いです。例えば、谷底や低い地形は水害のリスクが高く、急な斜面は土砂崩れのリスクがあるため、地形を知ることは命を守るために重要です。
いいえ、地形は名詞です。動詞として使う場合は「地形を作る」「地形を形成する」というように補助動詞を組み合わせる必要があります。
Test Yourself
この地域は___が複雑で、道を見つけるのが難しい。
起伏のある形状を指す場合は「地形」が最適です。
次のうち、地形を説明する表現として自然なものはどれですか？
地形の特徴を利用して設計することを「地形を生かす」と言います。
（地形 / 調べる / 必要があります / 現地の / ）
日本語の語順は「場所＋目的語＋動詞」が基本です。
Score: /3
Summary
Terrain refers to the physical configuration of the land and its surface features.
- Refers to the physical features of the Earth's surface.
- Used in geography, architecture, and disaster prevention contexts.
- Describes natural formations like mountains, valleys, and plains.
Use with descriptive adjectives
Combine '地形' with adjectives like '複雑な' (complex) or '平坦な' (flat) to describe areas clearly. This helps in both academic and casual conversations.
Don't confuse with '地層'
While '地形' refers to surface shape, '地層' refers to underground strata or soil layers. Keep the distinction between surface and sub-surface in mind.
Japan's unique geography
Japan is known for its mountainous terrain. Understanding this word helps explain why Japanese cities are often concentrated in small flat areas.
Examples
4 of 4この辺りは地形が平坦で歩きやすい。
This area has flat terrain and is easy to walk on.
複雑な地形が軍事上の防壁となった。
The complex terrain served as a military barrier.
地形を生かした公園のデザインを考えた。
I designed the park to make the most of the terrain.
地震による地形の変化を調査する。
Investigating changes in the terrain caused by the earthquake.
Related Content
This Word in Other Languages
Related Vocabulary
More nature words
～上
B1Above; on top of; up.
〜の上
A2On top of, above, upon.
豊か
B1Abundant; rich; plentiful (na-adjective).
〜に従って
B1According to, in conformity with, as (something happens).
酸性雨
B1Acid rain.
営み
B1Activity; daily life; undertaking (e.g., life's activities).
順応する
B1To adapt; to adjust; to conform.
~を背景に
B1Against the backdrop of; with...as background.
空気
A2air
大気汚染
B1Air pollution; the presence of harmful substances in the air.
