Example
Dictionary details
Related idioms
Expressions connected by reviewed component words or topic tags.
off the top of one's head
CEFR B2from memory, without checking or thinking carefully
Informal
brain power
CEFR B1intelligence or mental ability used to think and solve problems
Informal
come to mind
CEFR B1to appear in one's thoughts or memory
Neutral
ring a bell
CEFR B1to sound familiar or remind you of something
Informal
go without saying
CEFR B2to be so obvious that it does not need to be stated
Neutral
rack your brains
CEFR B2To think very hard in an effort to remember or solve something.
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.