give moral or psychological support, aid, or courage to;
"She supported him during the illness"
"Her children always backed her up"
move backwards from a certain position;
"The bully had to back down"
establish as valid or genuine;
"Can you back up your claims?"
make a copy of (a computer file) especially for storage in another place as a security copy;
"You'd better back up these files!"
become or cause to become obstructed;
"The leaves clog our drains in the Fall"
"The water pipe is backed up"
- Because congestion prevents ships heading back to pick up new cargoes, it has helped to push prices up further.
- Some drivers will switch to the bridge to shorten theircommute, but as the traffic builds up there the motorway starts to look like abetter bet, so some switch back.
- The fire won't burn because the flue is blocked up.
- Clogged pipes backed up drain water.
- She has almost nobody to take up for her.
- The people are at the back of the government.
- The regime had been propped up by foreign aid.
- He turned his back on his own family when they did need help.
- The car backed up and hit the tree.
- The steps are easy to trace back.
- You can back up and restore full-text catalogs.
- This option will back up files on the volume.