1. (

• solo ,

) any activity that is performed alone without assistance ;

2. (

• solo

) a musical composition for one voice or instrument (with or without accompaniment) ;

3. (

• solo

) a flight in which the aircraft pilot is unaccompanied ;

1. (

• solo

) fly alone, without a co-pilot or passengers ;

2. (

• solo

) perform a piece written for a single instrument ;

1. (

• solo

) composed or performed by a single voice or instrument; "a passage for solo clarinet" ;