call call
cell cell
hall hall
hell hell
gall gall
gel gel
hale hale
gale gale
cage cage
lace lace
lane lane
cane cane
lean lean
clean clean
glean glean
gene gene
glance glance
lance lace
eagle eagle
lag lag
hag hag
gal
can
clan
glen
clang
hang
cee ( the letter C)
lee
gee
nee
lea
leach
leech
ache
allege
all
ell
angel
angle
change
heal
hence
glee
henge
eel
heel
Defy (TO challenge something)
Brave (to challenge something)
face (to challenge something)
TEST (a challenge)
A four letter word COULD be hard.
(I encourage add-on answers from others)
dare
SNAG
Duel
i think its dare
Dare is a word that means to challenge someone to do something.
Care
Verbatim
kick
Likely candidate is the word: Inform.
Bring
Convinced
shown
Exhort
deter