In reply to cookacat: well done on getting a spanish erasmus placement - i did mine 4 years ago and it was amazing, can't remember loads but here are a few (excuse spelling)
Da me la cuerda (give me the rope - for threading belays)
Abajo/bajo/bajame (j bit like the k in lock) - below/down/lower me
listo - are you ready?
cinta - quickdraw
chapa - bolt
mas, mas, un poco mas, un poquito mas - more, more, a little bit more, a tiny tiny little bit more
Piya! (spelling awful i know) - take!
Seguro - safe
Casca - helmet
Pieds de gato - climbing shoes (literally - cats feet) (gatos for short)
Magnesio - chalk
Vamos - lets go!
Venga - go on! (like Allez in french)
Romo - sloper
dedo - finger
monodedo - one finger pocket.
puenta roca - a thread (rock bridge)
Asegurar - to belay
Reunion - lower off/belay
Piedra! - Rock! (below!)
toprope (in a spanish accent! "torrope")
diedro - corner
fissura - big crack
grieta - little crack
chiminea - chimney
grado - grade