noun
Neutral term for the state of being bald or a bald head.
父は若い頃から禿に悩んでいる。
My father has been troubled by baldness since he was young.
noun
bald person; baldy
Derogatory term for a bald person; usually written in kana.
あのハゲ、また文句言ってるよ。
That baldy is complaining again.
noun
Derogatory slang for a stupid person; usually written in kana.
そんな簡単なこともわからないなんて、お前はハゲか。
You don't even understand something that simple? Are you an idiot?
Irregular okurigana usage.
The derivation is uncertain; the kanji 禿 is conventionally associated with baldness.