An adult or person of the male sex; a man.
彼は真面目な男だ。
He is a serious man.
駅で大きな男の人に道を聞かれた。
A big man asked me for directions at the station.
この学校の生徒は男女合わせて三百人、男は百五十人です。
There are 300 students in this school; 150 are boys/men.
Informal term for a fellow, guy, or chap; a casual way to refer to a male person.
向こうにいる男、見覚えがあるよね？
That guy over there looks familiar, doesn't he?
あいつはいい男だよ。信頼できる。
He's a good guy. You can trust him.
あの男、なんか怪しい行動をしている。
That man is acting kind of suspicious.
A male romantic partner; a boyfriend or male lover.
彼女にはもう男ができたらしい。
It seems she already has a new man (boyfriend).
その映画では主人公の女が二人の男の間で悩む。
In that movie, the heroine is torn between two men.
彼は彼女の元の男とは違う優しさがある。
He has a kindness different from her ex.
Manliness or masculine honor — qualities like courage, dignity, or reputation traditionally associated with men (somewhat literary/old-fashioned).
古い小説には『男の誉れ』という表現がよく出てくる。
Old novels often use the expression 'a man's honor.'
彼は危機のときに男を見せた。
He showed his manliness in a time of crisis.