くまなく

くまなく
adverb
thoroughly; all over; every corner
writtendegree-extent
1. thoroughly, all over, every corner
Without leaving any area unchecked or untouched. Describes searching, looking, or covering an area completely.
I searched every corner of the room.
The police are searching the mountain thoroughly.
The sunlight reached every corner of the room.

Written as (くま)なく. The kanji (くま) means "dark corner" or "nook," so the word literally means "without dark corners" — i.e., leaving no corner unchecked.

Common collocations

Usage: Often used with verbs of searching, inspecting, or covering an area. A somewhat literary word, more common in writing and formal speech than casual conversation.