Example
“Off the top of my head, I'd guess about fifty people came.”
Dictionary details
Related idioms
Expressions connected by reviewed component words or topic tags.
spring to mind
Neutral · CEFR B2
to come into your thoughts suddenly and easily
brain power
Informal · CEFR B1
intelligence or mental ability used to think and solve problems
come to mind
Neutral · CEFR B1
to appear in one's thoughts or memory
go without saying
Neutral · CEFR B2
to be so obvious that it does not need to be stated
rack your brains
Informal · CEFR B2
To think very hard in an effort to remember or solve something.
stand to reason
Neutral · CEFR B2
to be logical or obvious
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.