FAQs About the word back up

백업

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)

확인하다,증언하다,담보하다,인증하다,인증,확인하다,증명하다,검증,검증하다,정당하다고 주장하다

챌린지,모순되다,부인,반박하다,반박하다,논박하다,콘테스트,분쟁,질문,부인하다

back tooth => 어금니, back talk => 대꾸하다, back street => 뒷골목, back stairs => 뒷 계단, back saw => 등톱,