heats up

Becomes more intense

Heats up means to become hotter or to make something hotter: Wait for the oven to heat up.

Figuratively, when a situation heats up, it intensifies or becomes more contentious: The debate heated up after the moderator's question.

Competition that heats up grows fiercer.

A romance that heats up becomes more passionate.

Related

competition · blaze · amplifies · accelerates · warming up · global warming · fire · burn · escalates · steam · combusts · rivalry · flare-up · energizes · builds · simmers · slow burn · clashes

Opposites
temperature change

heats upcools down

Reduces in temperature

cools off · chills · freezes · refrigerates · cools

intensity/escalation

heats upcools down

Reduces in temperature

calms down · de-escalates · settles down · dies down · winds down

activity/energy level

heats upslows down

Reduces velocity progressively

cools off · winds down · stagnates · flatlines · grinds to a halt

Family

heat, heated, heating, heater, reheat, heats, preheat, heaters, overheat

Familiarity
Top 20,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G