cómo
adverb
· very common
1
how
"¿Cómo sabes que puedes confiar en él?"
How do you know you can trust him?
2
what
"¿Cómo que no puedes venir? Te estábamos esperando."
What do you mean you can't come? We were waiting for you.
interjection
· very commonwhat!, how come!
"Cómo, no sabía que venías hoy."
What, I didn't know you were coming today.
masculine noun
the how, the method, the way
"Me interesa el cómo, no el cuándo."
I care about the how, not the when.