Any many many more.
Hotelier
Hurricane
HAT
Five letter words starting with H and ending in H are:hatchhaughfeathheighheuchheughhitchhoochhunchhutchhumphhorahhotchharsh, heath.
Vanquish is an eight letter word. Vermouth is another word beginning with v and ending with h.
Halibut ...
optometrist
Hi-C
HondurasHaiti
Hudson
Hue
Hulk