solo

Definition (noun): any activity that is performed alone without assistance

Definition (noun): a musical composition for one voice or instrument (with or without accompaniment)

Definition (noun): a flight in which the aircraft pilot is unaccompanied

Definition (verb): fly alone, without a co-pilot or passengers

Definition (verb): perform a piece written for a single instrument

Definition (adjective): composed or performed by a single voice or instrument

Example: a passage for solo clarinet

Definition (adverb): without anybody else or anything else

Example: the child stayed home alone

Definition (adverb): without anybody else or anything else

Example: the pillar stood alone, supporting nothing

Definition (adverb): without anybody else or anything else

Example: he flew solo