in or at some place not specified, determined, or known

They live somewhere in Michigan.

to some place not specified or known

They went out somewhere.

at or to some point in amount, degree, etc. (usually fol. by about, near, etc.)

He is somewhere about 60 years old.

at some point of time (usually fol. by about, between, in, etc.)

somewhere about 1930; somewhere between 1930 and 1940; somewhere in the 1930s.

an unspecified or uncertain place.

adverb

nowhere

adverb

about , any old place , around , around somewhere , elsewhere , here and there , in one place or another , kicking around , parts unknown , scattered , someplace , someplace or another , someplace or other , somewheres