Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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parts of speech:
noun, transitive verb, intransitive verb
Word Combinations (noun), Homophone Note, Word Explorer
part of speech: noun
definition 1: one of usu. several movable, webbed appendages that fish and other animals that live in the water use for swimming or balance.
The fish's fins help propel it through the water.
definition 2: anything that looks like or functions as a fin, such as certain projections often found on airplanes, boats, or cars.
Most of the classic cars in his 1950s collection have massive fins.
definition 3: a rubber flipper worn by an underwater swimmer.
The diver was wearing fins as well as a mask and snorkel.
definition 4: a rib or ridge, as on a radiator or engine, designed to maximize heat transfer to the environment.
Word CombinationsSubscriber feature About this feature
part of speech: transitive verb
inflections: finned, finning, fins
definition 1: to remove the fins from.
definition 2: to supply with fins.
part of speech: intransitive verb
definition 1: to come close to the surface of the water from below, allowing the fins to come above the water.
definition 2: to strike the water repeatedly with the fins, as does a dying whale.
derivation: finlike (adj.)
Homophone Note
The words fin and Finn sound alike but have different meanings. To find out why a fish has little use for a Finn, look up Finn.
Word Explorer
  airplane, boat, foot, worm