[{"Bold_text": "noun", "List Items": ["a person or thing that opens .", "a device for opening openingsealed containers:can opener.", "the first of several theatrical numbers, variety acts, sports events, etc.:a humorous monologue as an opener.", "openers,Poker.cards in a hand, as a pair of jacks or better, that according to a given standard are worth enough to enable the holder to make the first bet of a deal."]}]