To Become Tight, To Be Toned
intransitive verb, godan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means tighten, so the verb vocab version is to tighten.
What can you do if you want something to tighten or to become tight? You need to hug your sheep (し) really close until...
The sheep tightens into a tiny little ball. Cute!
This seat belt tightens on its own.
Mr Onishi's body is well toned isn't it!
This is my first managerial position and I’m very tense.