FAQs About the word back up

Backup

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)

bear out,Testify (to),vouch,authenticate,certify,confirm,corroborate,validate,verify,vindicate

challenge,Contradict,deny,disprove,rebut,refute,contest,dispute,question,disavow

back tooth => back tooth, back talk => Back chat, back street => back street, back stairs => back stairs, back saw => Back saw,