English Reference
phrasal verb

cool off

phr.v.

  1. 01 B1 Intermediate

    to become colder or less hot after being in the sun or exercising.

    to undergo a reduction in temperature. Intransitive or transitive use.

    Simple

    We went for a swim in the lake to cool off after our long hike.

    In context

    The engineers had to wait for the turbine to cool off completely before they could safely perform the necessary maintenance.

    Usage

    Can be used without an object ('the soup is cooling off') or with one ('the rain cooled the city off').

    heat upwarm up
  2. 02 B1 Intermediate

    to stop feeling angry or excited after a stressful situation.

    to regain emotional composure or reduce the intensity of one's temper.

    Simple

    Give him a few minutes to cool off before you try to talk to him again.

    In context

    The manager suggested that both employees take a short break to cool off before continuing the mediation session.

    Teacher's tip

    This is a very common and safe idiom to use in both professional and personal contexts.

    calm downsettle down
    lose one's temper
  3. 03 B2 Upper Intermediate

    to stop being excited about an idea, a plan, or a person.

    to experience a decline in enthusiasm or interest, often followed by the preposition 'on'.

    Simple

    I was excited about the trip at first, but I've cooled off on the idea lately.

    In context

    Investors have cooled off on the tech sector recently, preferring to put their capital into more stable, traditional industries.

    Usage

    Usually takes the preposition 'on' when followed by an object.

    lose interest
    warm to
Teaching tip

contrast with 'cool down', which is almost identical but more common for physical exercise; 'cool off' often implies a return to a comfortable state from an uncomfortably hot one.

Particles
off
Separability
optional
Pattern
cool + off (+ object)
This entry
Level B1 · Intermediate
Updated