回想（かいそう、kaisou）
- recollection

The Japanese word 回想 means "recollection," "reminiscence," or "to recall." It refers to the act of bringing a past event, memory, or experience to mind. It often involves a sense of nostalgia or reflecting on the past. The term can be used as a noun, representing the act of recollection itself, or as a verb, meaning to recall or to reminisce. It implies a conscious effort to retrieve a memory from the past. It's about thinking back on something, remembering it, and perhaps the feelings associated with that memory. It can also refer to a specific memory or instance of recollecting.

⚫︎子供の頃の夏休みの出来事を回想する。 Translation: I recall the events of summer vacation from when I was a child. ⚫︎彼女は昔の恋人との思い出を回想していた。 Translation: She was reminiscing about her memories with her former lover. ⚫︎映画は戦争の悲惨さを回想させる。 Translation: The movie makes one recall the horrors of the war.

⚫︎This word is suitable in both formal and informal situations. ⚫︎When you want to describe the act of remembering past events or memories. ⚫︎It can be used in conversations, essays, literature, or when discussing personal experiences. ⚫︎It's common to use it when talking about things that happened a while ago. ⚫︎Consider the context and the level of formality when choosing this word.

⚫︎The word 回想 is typically written with the kanji 回 (kai - meaning "time" or "round") and 想 (sou - meaning "thought" or "idea"). ⚫︎The reading is かいそう in hiragana. ⚫︎There are no significant variations in okurigana (the suffix hiragana). The verb form is usually expressed as 回想する which is a suru-verb. (回想します is the polite form)

⚫︎思い出 (omoide) - "memory," "recollection" (noun) ⚫︎記憶 (kioku) - "memory" (noun) ⚫︎追憶 (tsuioku) - "reminiscence," "looking back" (noun) ⚫︎思い出す (omoidasu) - "to remember," "to recall" (verb) ⚫︎懐かしむ (natsukashimu) - "to feel nostalgic about," "to yearn for" (verb)

⚫︎忘れる (wasureru) - "to forget" (verb) ⚫︎無視する (mushi suru) - "to ignore" (verb)

古いアルバムを見ながら、昔のことを回想した。 ・Translation: While looking at the old album, I recalled the past. ・Explanation: This sentence uses 回想 as a verb, showing the act of reminiscing about old memories while looking at an album.

彼の話は、私の子供時代の回想を呼び起こした。 ・Translation: His story brought back memories of my childhood. ・Explanation: This sentence shows 回想 used as a noun, referring to the act of recalling childhood memories.

The kanji 回 (kai) literally means "round" or "time." The kanji 想 (sou) means "thought," "idea," or "to think." Therefore, 回想 literally means "to think [about something] again" or "to think [of something] a second time," which captures the essence of recalling past events. It reflects the idea of bringing a past thought or experience back to the present.