SWIFT is a playable word

swift Scrabble® Dictionary

adjective
swifter, swiftest
moving with a great rate of motion
noun
pl. swifts
a fast-flying bird
18 Playable Words can be made from "SWIFT"
   2-Letter Words (5 found)
   3-Letter Words (7 found)
   4-Letter Words (5 found)
   5-Letter Words (1 found)