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非

fēi
prefix HSK 4 #1,430

Meanings

  1. 1 non-; un- (prefix negating a noun)
  2. 2 not belonging to a category

Examples

非金属元素包括氧和氮。
Fēi jīnshǔ yuánsù bāokuò yǎng hé dàn.
Non-metal elements include oxygen and nitrogen.
非正式会议不需要穿西装。
Fēi zhèngshì huìyì bù xūyào chuān xīzhuāng.
You don't need to wear a suit to an informal meeting.
这是一个非营利组织。
Zhè shì yī gè fēi yínglì zǔzhī.
This is a non-profit organization.

Tips

usage
As a prefix, 非 means 'non-' and attaches to nouns/adjectives: 非金属 (non-metal), 非正式 (informal/unofficial), 非法 (illegal), 非营利 (non-profit), 非暴力 (non-violent).
grammar
非 as a prefix creates a new compound word, unlike 不 which simply negates a verb/adjective. Compare: 非正式 (informal, a category) vs. 不正式 (not formal, a judgment).

Stroke Order

非 fēi