klɒɡ klɑɡ

establish as valid or genuine Can you back up your claims? become or cause to become obstructed The leaves clog our drains in the Fall The water pipe is backed up make a copy of (a computer file) especially for storage in another place as a security copy You'd better back up these files! move backwards from a certain position The bully had to back down give moral or psychological support, aid, or courage to She supported him during the illness Her children always backed her up