pontoon

English Thesaurus

1. a float supporting a seaplane (noun.artifact)

hypernym	:	float,
definition	:	something that floats on the surface of water (noun.artifact)

part meronym	:	amphibian, amphibious aircraft,
definition	:	an airplane designed to take off and land on water (noun.artifact)

2. (nautical) a floating structure (as a flat-bottomed boat) that serves as a dock or to support a bridge (noun.artifact)

hypernym	:	barge, flatboat, hoy, lighter,
definition	:	a flatbottom boat for carrying heavy loads (especially on canals) (noun.artifact)

part meronym	:	bateau bridge, floating bridge, pontoon bridge,
definition	:	a temporary bridge built over a series of pontoons (noun.artifact)

domain category	:	boat,
definition	:	a small vessel for travel on water (noun.artifact)