Nouns

(n)wrestle, wrestling, grapple, grappling, hand-to-hand strugglethe act of engaging in close hand-to-hand combat“they had a fierce wrestle”, “we watched his grappling and wrestling with the bully”

Verbs

(v)wrestlecombat to overcome an opposing tendency or force“He wrestled all his life with his feeling of inferiority”
(v)wrestleengage in deep thought, consideration, or debate“I wrestled with this decision for years”
(v)writhe, wrestle, wriggle, worm, squirm, twistto move in a twisting or contorted motion, (especially when struggling)“The prisoner writhed in discomfort”, “The child tried to wriggle free from his aunt's embrace”
(v)wrestleengage in a wrestling match“The children wrestled in the garden”