1.
thick, fat
Having a large diameter or girth.
この木は太い。
This tree is thick.
太いペンで書いてください。
Please write with a thick pen.
太い枝が道をふさいでいた。
A thick branch was blocking the road.
2.
bold (of text or lines)
Having thick strokes.
太い線を引く。
To draw a thick line.
太い字で名前を書いてください。
Please write your name in bold letters.
レポートの題名は太い文字にしてください。
Please make the report title bold.
太い is an i-adjective describing thickness or large diameter.
FORMS:
- Adverbial: 太く
- Noun form: 太さ (thickness)
- Verb: 太る (to get fat)
COMMON COLLOCATIONS:
- 太い木: thick tree
- 太い線: thick/bold line
- 足が太い: to have thick legs
- 太い声: deep/booming voice
- 太字: bold text
CONTRAST:
- 太い ↔ 細い (thin, slender)
FOR PEOPLE:
Use 太っている (to be fat) rather than 太い when describing overweight people. 太い人 can sound blunt or rude.