Usage note
闹表示吵、热闹，也可表示发脾气。
nào biǎo shì chǎo 、 rè nào， yě kě biǎo shì fā pí qi。
闹 means noisy, lively, or to make a fuss.
Context note
闹常用于环境、情绪和口语。
nào cháng yòng yú huán jìng 、 qíng xù hé kǒu yǔ。
It is often used with environment, emotions, and spoken language.
5 examples
这里很闹。
zhè lǐ hěn nào。
It is noisy here.
孩子们在闹。
hái zi men zài nào。
The children are making a fuss.
别闹了。
bié nào le。
Stop making trouble.
节日里很热闹。
jié rì lǐ hěn rè nào。
It is lively during festivals.
他又闹脾气了。
tā yòu nào pí qì le。
He is throwing a tantrum again.
5 mini stories
老师说，上课不要闹。
lǎo shī shuō， shàng kè bú yào nào。
The teacher said not to make noise in class.
周末的市场很闹。
zhōu mò de shì chǎng hěn nào。
The market is noisy/lively on weekends.
孩子们在外面闹得很开心。
hái zi men zài wài miàn nào dé hěn kāi xīn。
The children were making a happy fuss outside.
他闹了半天，最后还是答应了。
tā nào le bàn tiān， zuì hòu hái shì dā ying le。
He made a fuss for a long time, and finally agreed.
闹钟一响，大家都醒了。
nào zhōng yì xiǎng， dà jiā dōu xǐng le。
When the alarm rang, everyone woke up.
Mini dialogue
别闹了
A
弟弟，别闹了，我在写作业。
Dìdi, bié nào le, wǒ zài xiě zuòyè.
Little brother, stop making a fuss; I'm doing homework.
B
对不起，我不闹了。
Duìbuqǐ, wǒ bú nào le.
Sorry, I won't make a fuss anymore.
太闹了
A
教室里太闹了，我听不清老师说话。
Jiàoshì lǐ tài nào le, wǒ tīng bù qīng lǎoshī shuōhuà.
It's too noisy in the classroom; I can't hear the teacher clearly.
B
我们让大家安静一点吧。
Wǒmen ràng dàjiā ānjìng yìdiǎn ba.
Let's ask everyone to be quiet.
Related words and contrasts
opposite
安静
ān jìng
quiet
Opposite of noisy
similar
吵
chǎo
noisy; to quarrel
Similar meaning, often used for noise
related
玩
wán
to play
Children playing can be 闹