Definitions

1. noun

A structure, typically a floating deck or platform, supported by floats or a hull, used for recreational activities, such as boating or fishing.

“They anchored the boat to the pontoon and spent the day swimming.”

2. verb

To support or prop up something, especially with a floating deck or platform.

“The construction crew pontooned the bridge to allow it to be lifted into place.”

3. noun

A card game in which players try to collect sets of cards with the same rank but different suits.

“The group decided to play a game of pontoon at the casino.”