Flexions refer to the bending or movement of a joint or limb, and there are several synonyms that can be used to describe this action. Some of these synonyms include bending, folding, curving, contracting, and flexing. These words have similar meanings to flexions and can be used interchangeably in many cases. Other synonyms for flexions include twisting, turning, and contortion, which imply a more extreme or complex form of movement. Overall, the word flexions encompasses a range of actions related to movement and can be described using a variety of synonyms that convey different nuances and degrees of motion.