another word for bend or crease is misshape.
Flex.
Another word for saying "bend forward" is "hunch."
anoher word for bend is... warp twist kneed break joint
fold
Straight
bow, curve :):)
Strait
straight
for a noun for bend it is lean and for a verb it is arch for a noun for crease it is fold and for a verb it is tuck
meander
The greek for bend is λυγίσματος