1 (request) pedir; solicitar (formal) he wrote asking for help escribió pidiendo or (formal) solicitando ayuda; to ask for sth back pedir que se devuelva algo
he asked for his pen back I decided to go to the next house and ask for food I need to ask for some more information first who asked for your opinion?
2 (look for) to ask for sb preguntar por algn; there's someone asking for you at reception hay alguien en recepción que pregunta por ti
there's a man at the gate asking for you
3 (in idiomatic phrases) he is all I could ask for in a son tiene todo lo que podría pedirle a un hijo
he asked for it! ¡él se lo ha buscado!
you're asking for a good smack! ¡si sigues así, te vas a ganar una buena bofetada!
it's just asking for trouble eso no es otra cosa que buscarse problemas