乃 nǎi to be; thus; so
Made up of [丿 piě 'slash' radical 4]Used as component 乃 in :奶 nǎi
Made with 2 strokes.
Represents a pregnant woman with swollen breasts and abdomen, hence the abstract meaning 'so' to indicate generation of a connected phrase
Ancient small seal form 
Related characters
Also uses 丿 piě component: 必 bì (certainly) 弟 dì (younger brother) ; 乎 hū (at) ; 久 jiǔ (long time) ; 九 jiǔ (nine) ; 乐 lè (music) ; 么 me (what) ; 年 nián (year) ; 少 shǎo (less) ; 生 shēng (produce) ; 失 shī (to lose) ; 勿 wù (do not) ; 戊 wù (fifth (ordinal)) ; 午 wǔ (noon) ; 义 yì (justice) ; 之 zhī (him) ; 族 zú (clan)
Sounds same
奶 nǎi (milk)Pronunciation
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Stroke order for character 乃, kindly provided under Wikimedia creative commons license ➚