"solo" in the noun sense

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

"solo" in the verb sense

1. solo

fly alone, without a co-pilot or passengers

2. solo

perform a piece written for a single instrument

"solo" in the adjective sense

1. solo

composed or performed by a single voice or instrument

"a passage for solo clarinet"

"solo" in the adverb sense

1. alone, solo, unaccompanied

without anybody else or anything else

"the child stayed home alone"

"the pillar stood alone, supporting nothing"

"he flew solo"

Source: WordNet® (An amazing lexical database of English)

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