军人 (jūnrén) is a noun meaning "military personnel," "soldier," or "service member." It is a general term for anyone serving in the armed forces. The word combines 军 (military) and 人 (person), and is used in both formal and everyday contexts.
我爸爸是一名军人,在部队服役了二十年。
Wǒ bàba shì yì míng jūnrén, zài bùduì fúyì le èrshí nián.
My father is a soldier and served in the military for twenty years.
军人的生活很辛苦,但也很有意义。
Jūnrén de shēnghuó hěn xīnkǔ, dàn yě hěn yǒu yìyì.
A soldier's life is tough, but also very meaningful.
这家餐厅给军人打八折。
Zhè jiā cāntīng gěi jūnrén dǎ bā zhé.
This restaurant gives military personnel a 20% discount.