A four letter word that starts with J and ends with M:
jism.
A four letter word that starts with g and ends with n is gown :)
adze
Jeer
turd.
Edit.
A four letter word that starts with g and ends with n is gown :)
TintTaintTootThoughtTauntTautTraitTreat
Vita
Item.
Rota
adze
Arab
SUSSEX
Jeer
turd.
buzz
Edit.