pontoon
noun
[ pɒnˈtuːn ]
• a flat-bottomed boat or hollow metal cylinder used with others to support a temporary bridge or floating landing stage.
• "a pontoon bridge"
• a large flat-bottomed barge or lighter equipped with cranes and tackle for careening ships and salvage work.
Origin:
late 17th century: from French ponton, from Latin ponto, ponton-, from pons, pont- ‘bridge’.
pontoon
noun
• the card game blackjack or vingt-et-un.
• "he got me to go into his room for a hand of pontoon"
Origin:
early 20th century: probably an alteration of vingt-et-un ‘twenty-one’.
