FAQs About the word back up

Sauvegarde

give moral or psychological support, aid, or courage to, move backwards from a certain position, establish as valid or genuine, make a copy of (a computer file)

confirmer,Témoigner (de),garantir,authentifier,certifier,confirmer,corroborer,valider,vérifier,justifier

défi,Contredire,nier,réfuter,réfuter,réfuter,concours,différend,question,désavouer

back tooth => molaire, back talk => Rétorquer, back street => ruelle, back stairs => escalier de service, back saw => Scie à dos,