conjunction
Used in affirmative sentences to mean 'every place' or 'any place'. Often followed by a positive predicate.
この町はどこもきれいだ。
This town is beautiful everywhere.
どこも混んでいて、座れなかった。
Everywhere was crowded, so I couldn't sit down.
conjunction
nowhere; nothing (with negative verb)
Used with a negative verb to mean 'nowhere' or 'nothing (in terms of place)'. The negative form is essential for this meaning.
財布はどこも見つからなかった。
I couldn't find my wallet anywhere.
今日はどこも行きたくない。
I don't want to go anywhere today.