紐
niǔ

knot, button

纽 (紐) niǔ
button noun
a button, knob, or fastener used for securing or connecting

这个保险箱的开启需要旋转一个密码纽。

zhè gè bǎo​xiǎn​xiāng de kāi​qǐ xū​yào xuán​zhuǎn yī gè mì​mǎ niǔ.

Opening this safe requires turning a combination knob.

nu abbreviation
the thirteenth letter of the Greek alphabet (Ν, ν)

纽是希腊字母表中的一个字母。

niǔ shì Xī​là zì​mǔ​biǎo zhōng de yī gè zì​mǔ.

Nu is a letter in the Greek alphabet.

turn verb
to turn, twist, or wrench

她把断了的电线纽在一起，暂时接通了电源。

tā bǎ duàn le de diàn​xiàn niǔ zài yī​qǐ, zàn​shí jiē​tōng le diàn​yuán.

She twisted the broken wires together to temporarily restore the power.

Frequency
Character
Written text
1,767th most common 48.9 per million
Movie subtitles
938th most common 117.3 per million appears in 28% of films
Word
Movie subtitles
4.56 per million appears in 1% of films
Written text
7.22 per million

Details
Simplified
纽
Strokes
10
Unicode
U+7D10

Sources
Definitions
CC-CEDICT
Frequency data
MTSU Chinese text computingSUBTLEX-CHBCC Corpus (BLCU)