This radical is considered to be a simplification of: fortune telling 占 (crack 卜 in the shell 口 of a turtle from which the fortune was told.). Sometimes it is read as a forking of a road.
Tip: Go to the radicals that are contained in this character and learn all the characters with this radical systematically!
Vocabulary
一下
yī xià
(used after a verb) give it a go; to do (sth for a bit to give it a try); one time; once; in a while; all of a sudden; all at once
17
下游
xià yóu
lower reaches (of a river); lower level; lower echelon; downstream
3412
下层
xià céng
underlayer; lower class; lower strata; substrate
3419
乡下
xiāng xià
country (as opposed to town or city); rural
3695
下午
xià wǔ
afternoon; p.m.
3778
殿下
diàn xià
your majesty (honorific); his highness
4492
躺下
tǎng xià
to lie down
4581
惟恐天下不乱
wéi kǒng tiān xià bù luàn
motivated by a desire to see the world in chaos; lest all under heaven's not in chaos and disorder
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