I. adverb
1.
as a discrete item
taken apart, his view seemed sound enough
Synonyms: independently, individually, one by one, separately, severally, singly
Idioms: one at a time
2.
excluded from consideration
these slips apart, he had done very well
Synonyms: aside
Idioms: to one side
3.
in or into parts
tore the sheets apart
Synonyms: asunder, sky-high
Idioms: all to pieces, to bits ( or flinders)
II. adjective
Synonyms: alone 1, detached, isolate, isolated, removed, unaccompanied