确

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authenticated; solid; firm; real; true

Sound it out + =

Formation & memory

Break the character into parts you already know.

Phono-semantic compound (形声字)

石 meaning “stone” + 角 sound ( jiǎo )

Components 石角

reliable · Heisig RSH #1363

石 stone + safe

Keyword method from Heisig's Remembering Simplified Hanzi.

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

Word	Pinyin	Meaning
不确定性原理	bù què dìng xìng yuán lǐ	Heisenberg's uncertainty principle (1927)
确有其事	què yǒu qí shì	(confirm to be) true; authentic
政治正确	zhèng zhì zhèng què	political correctness; politically correct
确山县	Què shān Xiàn	Queshan, a county in Zhumadian City 駐馬店市\|驻马店市[Zhu4 ma3 dian4 Shi4], Henan
不明确	bù míng què	indefinite; unclear
确定性	què dìng xìng	determinacy
不正确	bù zhèng què	incorrect; erroneous
不确实	bù què shí	untrue
千真万确	qiān zhēn wàn què	absolutely true (idiom); manifold; true from many points of view
上确界	shàng què jiè	supremum (math.); least upper bound
下确界	xià què jiè	(math.) infimum; greatest lower bound
精确度	jīng què dù	accuracy; precision
不准确	bù zhǔn què	imprecise
准确性	zhǔn què xìng	accuracy
确山	Què shān	see 確山縣\|确山县[Que4 shan1 Xian4]
明确	míng què	clear-cut; definite; explicit; to clarify; to specify; to make definite
确定	què dìng	definite; certain; fixed; to fix (on sth); to determine; to be sure; to ensure; to make ce…
的确良	dí què liáng	dacron (loanword)
正确	zhèng què	correct; sound; right; proper
确信	què xìn	to be convinced; to be sure; to firmly believe; to be positive that; definite news

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

Character	Pinyin	Meaning
角 sound part	jiǎo	angle, corner; horn, horn-shaped
斛	hú	ancient measuring vessel; unit of volume, about 50 liters
桷	jué	rafter; Malus toringo