热
rè
I s.v.
1) hot
热死我了。 I feel extremely hot.
2) warm
水热吗？ Is the water warm?
II b.f.
1) thermal (热能)
2) ardent; warmhearted (热心)
3) fever; temperature (发热)
4) craze; fad (热门)
III n.
phy. heat
IV v.
heat up; warm up; warm
饭凉了，拿去热一热。 The food is getting cold. Go and warm it up.