‘回忆’ (huí yì) is a versatile word meaning both ‘memory’ (as a noun) and ‘to recall’ or ‘to reminisce’ (as a verb). The first character 回 (huí) means ‘to return’ or ‘to go back,’ while 忆 (yì) means ‘to remember’ — together, they evoke the idea of mentally returning to past experiences. As a noun, it refers to memories themselves — often personal, emotional, or nostalgic ones. As a verb, it describes the act of bringing those past moments to mind, usually deliberately and with feeling.

This word is commonly used in reflective, literary, or conversational contexts — for example, when sharing childhood stories, reflecting on life changes, or describing how a smell or song triggers a memory. It carries a gentle, sometimes wistful tone and is more formal and expressive than simpler terms like 想起 (xiǎng qǐ). It frequently appears in written Chinese, songs, essays, and heartfelt speech, especially when emphasizing depth or emotional resonance.