1To overflow, brim over, or spill out beyond a container's edge. Also used figuratively for a place packed with people or things, or for emotions and energy welling up from within. The kanji 溢 is non-jōyō, so the kana spelling あふれる is more common in modern writing.
大雨で川の水があふれた。
The river water overflowed because of the heavy rain.
週末の駅は人であふれている。
On weekends, the station is overflowing with people.
合格の知らせを聞いて、目に涙があふれた。
When I heard I had passed, tears welled up in my eyes.
彼女の文章にはユーモアがあふれている。
Her writing is brimming with humor.
コップに水を注ぎすぎて溢れてしまった。
I poured too much water into the cup and it overflowed.