I. noun
Synonyms: bottom 1, underneath, underside, undersurface
II. adjective
1.
Synonyms: single 1, spouseless, unmarried, unwed
2.
Synonyms: single 2, lone, one, only, particular, separate, solitary, unique
3.
Synonyms: only 2, alone, lone, singular, solitary, solo, unexampled, unique, unrepeatable
Idioms: one and only
4.
belonging, granted, or attributed to the one person or group
sole rights of publication
Synonyms: exclusive, single, unshared
Contrasted words: multiple; shared