Hot Springs, Onsen
noun
A warm spring (like the water kind of spring) is a hot spring. These are really nice. You should go to them in Japan.
おんせん
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
この温泉は、タトゥーのある人も入れますよ。
This onsen is open for people with tattoos too.
今週末、友人と温泉旅行に行きます。
I will go on a hot spring trip with my friends this weekend.
私の父も母も温泉が好きじゃありません。
Neither my dad nor mom likes hot springs.