According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 25 words with the pattern --HE-. That is, five letter words with 3rd letter H and 4th letter E. In alphabetical order, they are:
aahed
ached
aches
ashed
ashen
ashes
ashet
bohea
eched
eches
ether
hohed
iched
iches
ishes
ither
mohel
ocher
oches
oohed
other
rahed
rehem
saheb
usher
Rasta
alarm
plaza
Cream.
Stand
Death?
zoned
brant
argot
Seven.
blitz
taint