backs up
Stands behind someone
Backs up carries several distinct senses unified by support or reversal.
To back up is to move backward: She backed up the car.
It also means to support or confirm: The evidence backs up her claim.
In computing, backing up means copying data for safekeeping: Back up your files regularly.
Traffic backs up when it accumulates and slows.
Plumbing backs up when drainage reverses direction.
- corroboratesStrengthens with evidence
- authenticateConfirm as genuine
- bears witnessGives formal testimony
- sworn testimonyOath-bound legal statement
- congestsOverfills to obstruction
traffic jam · rush hour · bumper to bumper · bolster · confirm · validates · substantiates · vouches · copies · save file · buttress · queues · archives · replicates · attests · gridlocks · verify · support
backs upundermines
Weakens by stealth
contradicts · refutes · opposes · betrays · abandons
back, backward, backing, backup, back up, backed, backer, backs, upping