CANNONBALLING
Scrabble letter values: C3A1N1N1O1N1B3A1L1L1I1N1G2 = 18
Definition
CANNONBALLING is the present participle of CANNONBALL.
noun CANNONBALL: a solid projectile that in former times was fired from a cannon.
Synonyms of CANNONBALL: cannon_ball, round_shot