Example
Dictionary details
Related idioms
Expressions connected by reviewed component words or topic tags.
let the cat out of the bag
CEFR B1To reveal a secret, usually by mistake.
Informal
pull someone's leg
CEFR B1To tease or joke with someone by telling them something untrue in fun.
Informal
spill the beans
CEFR B1To reveal a secret, often accidentally.
Informal
behind closed doors
CEFR B2in private, away from public observation
Neutral
behind the scenes
CEFR B2happening privately or secretly, not in public view
Neutral
come clean
CEFR B2to confess the truth about something previously hidden or denied
Informal
Source methodology
Meanings, register, CEFR, and examples come from the reviewed dictionary record. Expression notes may describe a reviewed present-day word picture or a background note; they are not presented as verified etymology.