Meaning of nà:
nà
呐
Onomatopoeia
battle cry
Zhànshìmen fāchūle nàhǎn, zhǔnbèi yíngjiē tiǎozhàn.
战士们发出了呐喊，准备迎接挑战。
The soldiers let out a battle cry, ready to face the challenge.
Particle
sentence-final particle (abbr. for 呢啊[ne5 a5] or variant of 哪[na5])
Nǐ jīntiān xīnqíng hǎo ma na?
你今天心情好吗呐？
How are you feeling today, na?
