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tried and true
triene
triennia
triennial
triennium
Trier
trier
trierarch
trierarchy
Trieste
Trieste, Gulf of
trifecta
triffid
trifid
trifle
trifle with
trifling
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Trident
Tri·dent (plural Tri·dents)


noun 
Definition:
 
ballistic missile: a U.S.-manufactured ballistic missile system fired from nuclear submarines and in service with the U.S. Navy and the British Royal Navy
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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