To well up or gush out (of water, springs); to spring forth.
山の麓に清水が湧いていた。
Fresh water was gushing out at the foot of the mountain.
To appear or come out (sweat, tears, etc.); to well up (e.g., tears welling up).
感動して胸に熱いものが湧いた。
I was moved and felt something warm well up in my chest.
緊張して汗が背中に湧いてきた。
I got nervous and sweat began to appear on my back.
Emotions or ideas springing up; feelings like courage or anxiety arising.
彼の言葉で急に勇気が湧いてきた。
His words suddenly gave me courage.
問題を聞いて不安が湧いたが、すぐに解決策も浮かんだ。
Hearing the problem made me anxious, but a solution also came to mind quickly.
To hatch, breed, or become infested (e.g., insects appearing in large numbers).
台所に虫が湧いてしまって大変だ。
We've got insects breeding in the kitchen—it's a big problem.