忆 ⇒
记忆 jìyì, [記憶], to remember/to recall/memory/CL:個|个[gè]
回忆 huíyì, [回憶], to recall/memories/CL:個|个[gè]
忆 yì, [憶], to recollect/to remember/memory
记忆力 jìyìlì, [記憶力], faculty of memory/ability to remember
回忆录 huíyìlù, [回憶錄], memoir
记忆犹新 jìyìyóuxīn, [記憶猶新], to remain fresh in one's memory (idiom)
追忆 zhuīyì, [追憶], to recollect/to recall (past times)/to look back
忆起 忆苦思甜 yìkǔsītián, [憶苦思甜], to view one's past as miserable and one's present as happy (idiom)