Usages of faltar
No posis res a la bústia si falta el segell.
Do not put anything in the mailbox if the stamp is missing.
Em falta un segell per enviar el paquet.
I still need a stamp to send the package.
La tieta ja ha convidat dues amigues i una veïna, però encara falten altres convidades.
My aunt has already invited two friends and one neighbor, but other guests are still missing.
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