[haf-pahyp, hahf-] /ˈhæfˌpaɪp, ˈhɑf-/
a half-moon-shaped chute or ramp used by snowboarders and skateboarders to provide a takeoff for a jump.
a structure with a U-shaped cross-section, used in performing stunts in skateboarding, snowboarding, rollerblading, etc
[haf-pleyn, hahf-] /ˈhæfˌpleɪn, ˈhɑf-/ noun, Mathematics. 1. the part of the plane on one side of a straight line of infinite length in the plane.
noun 1. (photog) a size of plate measuring 61/2 × 41/4 inches
adjective, adverb 1. for half the normal price: children go half-price
[haf-pound, hahf-] /ˈhæfˈpaʊnd, ˈhɑf-/ noun 1. a unit of weight equal to 8 ounces avoirdupois (0.227 kilogram) or 6 ounces troy or apothecaries’ weight (0.187 kilogram).