adduction, adhesion, advantage, affinity, allurement, attractance, attraction, attractiveness, attractivity, capillarity, capillary attraction, centripetal force, draft, drag, draw, drawing, drayage, extraction, foothold, footing, friction, gravitation, gravity, grip, haulage, hauling, heaving, hold, magnetism, mutual attraction, pull, pulling, pulling power, purchase, sympathy, toehold, towage, towing, tractive power, tug-of-war, tug, tugging