What is the meaning of outweigh?

Be heavier than."Bob outweighed him by more than twenty-five pounds"be greater or more significant than. verb: outweigh; 3rd person present: outweighs; past tense: outweighed; past participle: outweighed; gerund or present participle: outweighing"the advantages greatly outweigh the disadvantages" synonyms: be greater than, exceed, be superior to, prevail over, have the edge on/over, override, supersede, offset, cancel out, (more than) make up for, outbalance, compensate for"the costs outweigh the benefits"