一 + 个 + 男人
男人 (nánrén) means "man," referring to an adult male. It is the standard, neutral term used in both spoken and written Chinese to refer to a male person.
那个男人看起来很面熟。
Nàge nánrén kàn qǐlái hěn miànshú.
That man looks very familiar.
他是一个非常有责任感的男人。
Tā shì yī gè fēicháng yǒu zérèngǎn de nánrén.
He is a very responsible man.
旁边那个男人一直在打电话。
Pángbiān nàge nánrén yīzhí zài dǎ diànhuà.
The man next to us has been on the phone the whole time.