誠 [诚] chéng
adverb
: honest; sincere; true
まこと makoto
adverb | noun
: truth; reality
: sincerity; honesty; integrity; fidelity;
まことに makotoni
adverb
: indeed; really; absolutely; truly; actually; very; quite
せい sei
じょう jou
誠實[诚实] cheng2shi2: honest; honorable; truthful
[誠実 |せいじつ seijitsu: sincere; honest; good faith]
誠懇[诚恳] cheng2ken3: sincere; honest; cordial
誠意 cheng2yi4: sincerity; good faith [せいい seii]
真誠 zhen1cheng2: true; sincere; genuine
忠誠 zhong1cheng2: devoted; loyal; fidelity
[誠忠 | せいちゅう seichuu: loyalty]
虔誠 qian2cheng2: pious; devout; sincere
投誠 tou2cheng2: to defect; surrender
Japanese expression
誠を尽くす | まことをつくす makoto o tsukusu
: to do with sincerity
至誠天に通ず | しせいてんにつうず shisei ten ni tsuuzu
: Sincerity can move heaven
Chinese idiom
誠心誠意cheng2xin1 cheng2yi4: earnestly & sincerely
[せいしんせいい seishin seii: in all sincerity; whole-hearted devotion]
精誠所加,金石為開 [精诚所加,金石为开] jing1 cheng2 suo3 jia1, jin1 shi2 wei4 kai1
: sincerity splits open metal and stone: if you put your heart to it, you can break up metal and rocks; With a will, you can achieve anything.
形声 Pictophonetic.
言 (yang: speech) suggests the meaning while
成 (cheng2: complete) provides the sound.
簡體 Simplified
Examples:
他的忠誠無可置疑.
ta1 de zhong1cheng2 wu2ke3zhi4yi2
His loyalty is undoubtable.
Resources: Chinese Dictionary | Japanese Dictionary