10件
あたたかい
warm (used to describe food/drinks or referring to feelings)
あたためる
to warm
あつい
hot
おんど
temperature
つめたい
cold
ぬるい
lukewarm
(お)ゆ
hot water
ゆわかしき
water heater
わかす(ふろを〜/ゆを〜)
to boil (water) ; to heat (water in a bath)
わく(ふろが〜/ゆが〜)
(water) to boil ; (bath) to heat