The kanji 忘 primarily conveys the meaning of "to forget," "to forget about," or "to leave behind." It implies a loss of memory, awareness, or consideration. It can also suggest negligence or disregard. The core idea is the fading or absence of something from one's mind or attention.

・On-yomi (音読み): ボウ (bou) ・Kun-yomi (訓読み): 忘（わす）れる (wasureru)

⚫︎忘（わす）れ物（もの） Translation: lost item; something left behind ⚫︎忘年会（ぼうねんかい） Translation: year-end party; end-of-year party (literally "forget-the-year gathering") ⚫︎記憶（きおく）を忘（わす）れる Translation: to forget a memory

The kanji 忘 is a phono-semantic compound (形声文字, keisei moji). The left side is the radical 心（こころ） (kokoro, meaning "heart" or "mind"). The right side is 亡（ぼう） (bou, meaning "to perish" or "to die") which acts as the phonetic component, indicating the sound and contributing the idea of something disappearing or being lost. Therefore, the character combines the "heart/mind" with the idea of "perishing/dying," suggesting something fading or vanishing from the mind, hence "to forget."