solo
adjective
· #3 most common adjective
1
alone, solitary
"El calcetín solo presidía la lavadora."
The lone sock presided over the washing machine.
2
single, just one (ni un solo)
"No quedó ni una sola galleta de testigo."
Not a single cookie was left as a witness.
3
lonely
"Se siente solo cuando se cae el wifi."
He feels lonely when the wifi goes down.
4
black (coffee)
Spain"Un café solo, que la tarde viene larga."
A black coffee, the afternoon is going to be a long one.
adverb
· very commononly
"Solo se vive una vez."
You only live once.
masculine noun
solo
"Tocó un solo de guitarra."
He played a guitar solo.