contra

interjection

· very common

darn it!, blast!

Contra, se me cayó el café!"

Darn it, I spilled my coffee!

preposition

· very common

against

"Puse la silla contra la puerta."

I put the chair against the door.

feminine noun

the downside, the drawback, the con

"Todo plan tiene sus pros y contras."

Every plan has its pros and cons.