noun, used as a prefix, noun
Prefix or noun meaning fat, thick, or large in size. Often used in compounds like 太っちょ (fat person) or 太字 (bold text).
彼は太っちょだ。
He is a fatty.
この部分は太字で書いてください。
Please write this part in bold.
noun, used as a prefix
Prefix used in a few compounds to express greatness or excellence, such as 太っ腹 (generous) or 太刀 (long sword). Not freely productive.
彼は太っ腹な人だ。
He is a generous person.
「太刀」の「太」は、大きいという意味を含む。
The 太 in 太刀 carries the meaning of 'large'.