JET
JETBEAD
JETBEADS
JETE
JETES
JETFOIL
JETFOILS
JETLAG
JETLAGS
JETLIKE
JETLINER
JETLINERS
JETON
JETONS
JETPLANE
JETPLANES
JETPORT
JETPORTS
JETS
JETSAM
JETSAMS
JETSOM
JETSOMS
JETSON
JETSONS
JETSTREAM
JETSTREAMS
JETTATURA
JETTATURAS
JETTED
JETTIED
JETTIER
JETTIES
JETTIEST
JETTINESS
JETTINESSES
JETTING
JETTISON
JETTISONABLE
JETTISONED
JETTISONING
JETTISONS
JETTON
JETTONS
JETTY
JETTYING
JETWAY
JETWAYS

48 words start with JET.