Adjectives

(s)apart, isolated, obscureremote and separate physically or socially“existed over the centuries as a world apart”, “preserved because they inhabited a place apart” (W.H.Hudson), “tiny isolated villages remote from centers of civilization”, “an obscure village”
(s)aparthaving characteristics not shared by others“scientists felt they were a group apart” (Vannever Bush)

Adverbs

(r)apartseparated or at a distance in place or position or time“These towns are many miles apart”, “stood with his legs apart”, “born two years apart”
(r)apart, asidenot taken into account or excluded from consideration“these problems apart, the country is doing well”, “all joking aside, I think you're crazy”
(r)apartaway from another or others“they grew apart over the years”, “kept apart from the group out of shyness”, “decided to live apart”
(r)aside, apartplaced or kept separate and distinct as for a purpose“had a feeling of being set apart”, “quality sets it apart”, “a day set aside for relaxing”
(r)apartone from the other“people can't tell the twins apart”
(r)apart, asunderinto parts or pieces“he took his father's watch apart”, “split apart”, “torn asunder”