back up 5verbdomain: v physical contactPrinceton WordNet [ver.3.1]EnglishDefinitionbecome or cause to become obstructedReport errorPath to highest hypernymMorphologySynset graphExamples1.The water pipe is backed up2.The leaves clog our drains in the FallSynonymsclog 1become or cause to become obstructedchoke off 2become or cause to become obstructedclog up 1become or cause to become obstructedcongest 1become or cause to become obstructedchoke 8become or cause to become obstructedfoul 3become or cause to become obstructed