Chinese words with 忘 character meaning (HSK)

忘记

WANG4, JI4
to forget

备忘录

BEI4, WANG4, LU4
memorandum, aide-memoire, memorandum book

废寝忘食

FEI4, QIN3, WANG4, SHI2
to neglect sleep and forget about food (idiom), to skip one's sleep and meals, to be completely wrapped up in one's work