chill out

verb

chilled out; chilling out; chills out

intransitive verb

slang

: to calm down : go easy : relax

—often used in the imperative

Synonyms of chill out

• cool
• settle (down)
• calm (down)
• hush
• cool it

Examples of chill out in a Sentence

stop making that racket, and just chill out!

if you don't chill out, you're going to get an ulcer

Recent Examples on the Web

The ‘Summer in Siam’ period was very much chilled out on heroin in Thailand. — Kory Grow, Rolling Stone, 13 Nov. 2026

Brewing ahead leaves fermentation and chilling out of the gathering itself. — New Atlas, 27 Oct. 2026

Robed guests chill out in lounge chairs that look out onto an interior courtyard garden full of vegetation, including a pine tree twisted to resemble a giant bonsai. — Condé Nast, Condé Nast Traveler, 22 Oct. 2026

Almost exactly one year ago, fans of superstar singer Taylor Swift made a public plea for fans to chill out and stop staring into the Arrowhead Stadium suite owned by Chiefs tight end Travis Kelce. — Pete Grathoff, Kansas City Star, 19 Oct. 2026

Word History

First Known Use

1979, in the meaning defined above

Rhymes for chill out

• about
• bailout
• blackout
• blowout
• breakout
• burnout
• buyout
• checkout
• closeout
• cutout
• devout
• dropout

Kids Definition

chill out

verb

slang

: to calm down : go easy