fine tooth comb
[verb]
Synonyms: scour, beat, comb, finecomb, forage, grub, rake, ransack, rummage, search

[TahlilGaran] English Synonym Dictionary ▲

ˌfine-tooth ˈcomb noun
go through/over something with a fine-tooth comb to examine something very carefully and thoroughly:
The police went over the scene of the crime with a fine-tooth comb.

[TahlilGaran] Dictionary of Contemporary English ▲

fine-tooth comb
• fine-tooth/toothed comb
great care, careful attention so as not to miss anything
We went over the room with a fine-tooth comb but we were unable to find the lost credit card.

[TahlilGaran] English Idioms Dictionary ▲

fine tooth comb
n. phr. Great care; careful attention so as not to miss anything.
The police searched the scene of the crime with a fine-tooth comb for clues.
My room is so clean you couldn't find dirt if you went over it with a fine-tooth comb.
Compare: LEAVE NO STONE UNTURNED.

[TahlilGaran] English Idioms Dictionary ▲