noun, noun or participle which takes 'suru', intransitive verb
yawn; yawning
Standard word for a yawn. Can be used as a noun or with する to mean 'to yawn'.
会議中にあくびをしてしまった。
I accidentally yawned during the meeting.
大きなあくびが出た。
I let out a big yawn.
noun
kanji 'yawning' radical (radical 76)
Refers to the kanji radical 欠 (あくび), used in characters like 歌 and 欲. This is a metalinguistic, domain-specific sense.
部首の「欠」は「あくび」と呼ばれることがある。
The radical 欠 is sometimes called 'akubi' (yawn).