pon‧toon /pɒnˈtuːn $ pɑːn-/ 
 noun[
Date: 1600-1700; 
Language: French; 
Origin: ponton 'floating bridge', from Latin ponto, from pons 'bridge']
1.  [countable] one of several metal containers or boats that are fastened together to support a floating bridge
2.  [countable] one of two hollow metal containers fastened to the bottom of a plane so that it can come down onto water and float
3.  [uncountable] British English a card game, usually played for money
 Synonym : blackjack American English  [TahlilGaran] Dictionary of Contemporary English ▲