含

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to keep in the mouth; to contain

Sound it out + =

Formation & memory

Break the character into parts you already know.

Phono-semantic compound (形声字)

口 meaning “mouth” + 今 sound ( jīn )

Components 今口

harbor · Heisig RSH #1245

clock + 口 mouth

Keyword method from Heisig's Remembering Simplified Hanzi.

The most common words first — learning a character in context makes it stick.

Word	Pinyin	Meaning
含山县	Hán shān Xiàn	Hanshan, a county in Ma'anshan City 馬鞍山市\|马鞍山市[Ma3 an1 shan1 Shi4], Anhui
含金量	hán jīn liàng	gold content; (fig.) value; quality; prestige
含水层	hán shuǐ céng	aquifer
含沙射影	hán shā shè yǐng	(idiom) to attack sb by innuendo; to make insinuations
含沙量	hán shā liàng	sand content; quantity of sediment (carried by a river)
血氧含量	xuè yǎng hán liàng	blood oxygen level
舌下含服	shé xià hán fù	sublingual administration (medicine)
含山	Hán shān	see 含山縣\|含山县[Han2 shan1 Xian4]
含水	hán shuǐ	watery
含有	hán yǒu	to contain; including
含气	hán qì	containing air
含血喷人	hán xuè pēn rén	to make false accusations against sb (idiom)
闪含语系	Shǎn Hán yǔ xì	Hamito-Semitic family of languages (incl. Arabic, Aramaic, Hebrew etc)
含糊不清	hán hú bù qīng	unclear; indistinct; ambiguous
含义	hán yì	meaning (implicit in a phrase); implied meaning; hidden meaning; hint; connotation
含油岩	hán yóu yán	oil bearing rock
含意	hán yì	meaning
含情脉脉	hán qíng mò mò	full of tender feelings (idiom); tender-hearted
含量	hán liàng	content; quantity contained
内含	nèi hán	to contain; to include

Characters sharing the sound component 今 — compare how they read.

Character	Pinyin	Meaning
今 sound part	jīn	modern, current; today, now
贪	tān	greedy, covetous; corrupt
吟	yín	to sing, to hum; to recite; a type of poetry
黔	qián	black; the Guizhou province
岑	cén	steep, precipitous; peak
矜	jīn	to pity, to sympathize, to feel sorry for
衾	qīn	quilt, coverlet
妗	jìn	mother's brother's wife
侌	yīn	old variant of 陰\|阴[yin1]
芩	qín	salt-marsh plant
衿	jīn	collar, lapel
钤	qián	lock, latch; to stamp, to seal