忘: to forget

忘 wàng

adjective | verb
: to forget; to overlook; to neglect

忘る | わする wasuru

godan verb with ru ending
: (archaism) to lose something

忘れる | わすれる wasureru

ichidan verb | transitive verb
: to forget; to leave carelessly; to be forgetful of; to forget about; to forget (an article)

忘れられる | わすれられる wasurerareru

ichidan verb
: to slip into obscurity; to be forgotten

忘れかける | わすれかける wasurekakeru

ichidan verb
: to start forgetting

忘れっぽい | わすれっぽい wasureppoi

adjective
: forgetful

忘記[记] wang4ji4: to forget

忘卻[却] wang4que4: to forget
[忘却 | ぼうきゃく boukyaku: lapse of memory; forgetfulness; oblivion]

忘我 wang4wo3: selflessness; altruism [ぼうが bouga: trance; ecstasy; enthusiasm]

忘性 wang4xing4: forgetfulness

忘恩 wang4en1: to be ungrateful [ぼうおん bouon: ingratitude; thanklessness]

忘本 wang4 ben3: to forget one’s roots

忘不了 wang4 bu4 liao3: can’t forget

忘情 wang4qing2: unmoved; indifferent; unruffled by sentiment

忘八 wang4ba1: tortoise; cuckold (abusive)
[ぼうはち bouhachi: customer at a brothel; john; someone who has forgotten the eight virtues
: brothel; owner of a brothel]

忘八蛋 wang4ba1 dan4: turtle’s egg (highly offensive when directed at somebody)

遺[遗]忘 yi2wang4: to become forgotten; to forget

備[备]忘 bei4wang4: quote [備忘 | びぼう bibou: reminder]

難[难]忘 nan2wang4: unforgettable

健忘 jian4wang4: forgetful [けんぼう kenbou: forgetfulness]

善忘 shan4wang4: forgetful; amnesia

Japanese common word / expression / idiom
忘れ物 | わすれもの wasuremono
: lost article; something forgotten

勿忘草色 | わすれなぐさいろ wasure na gusairo
: forget-me-not blue

*魚を得てせんを忘る uo wo ete sen wo wasuru
: Having caught the fish, the trap may be forgotten, i.e. it is of secondary importance; also ingratitude

恩を忘れる | おんをわすれる on o wasureru
: to be ungrateful

我を忘れる | われをわすれる ware o wasureru
: to forget oneself; to lose control of oneself

故郷忘じ難し | こきょうぼうじがたし kokyou bouji gatashi
: Home is always sweet to an exile

雀百迄踊り忘れず | すずめひゃくまでおどりわすれず suzume hyaku madeo dori wasurezu
: What is learned in the cradle is carried to the tomb

Chinese idiom
忘恩負義 [忘恩负义] wang4 en1 fu4 yi4
: to forget favors and violate justice; ingratitude to a friend; to kick a benefactor in the teeth

*得魚忘筌 de2 yu2 wang4 quan2
: lit. catch fish then forget the trap; fig. to take help for granted

念念不忘 nian4 nian4 bu4 wang4
: to keep in mind constantly

見色忘友 [见色忘友] jian4 se4 wang4 you3
: to neglect one’s friends when smitten with a new love: to forget loyalty when in love; hoes before bros

轉眼便忘 [转眼便忘] zhuan3 yan3 bian4 wang4
: what the eye doesn’t see the heart doesn’t miss

吃水不忘掘井人 chi1 shui3 bu4 wang4 jue2 jing3 ren2
: Drinking the water of a well, one should never forget who dug it