: a thing very likely to happen. It's a safe bet that they'll win. : someone or something most likely to do something successfully. She's a good bet to win the tournament.Good/safe/sure bet Definition & Meaning - Merriam-Webstermerriam-webster : dictionary : good : safebet 77 ioto be something that you are certain will happen: It's a safe bet that Martin will be the last to arrive.Meaning of be a safe bet in English - Cambridge Dictionarydictionary.cambridge : dictionary : english : safe-betbet 77 io melhores casas esportivas