a weapon consisting of a long wooden shaft with a pointed steel head that was used by foot soldiers until superseded by the bayonet

formerly, to attack, pierce, or kill (somebody) with a pike

a body position, e.g. in diving, in which the hands touch the toes or clasp the legs at the knees, the hips are bent forward, and the knees are straight

NAmer = turnpike

a point or spike

Brit a mountain or hill, esp in the Lake District, with a peaked summit

NAmer, Aus, NZ, informal (usu + on/out) to let somebody down by avoiding doing something or failing to do it

He was supposed to be giving us a hand but he's piked on us