(military slang, derogatory) A submariner.

(idiomatic, also attributive) A journalist or pundit, especially one on television, who presents or discusses issues of the day.

A tax determined as a uniform, fixed amount per individual; a poll tax.

(transport) A collision where the front ends of two vehicles (such as ships, trains, cars, planes, etc.) hit each other, as opposed to a side-collision or rear-end collision.

plural of head-on collision

plural of head boy

Alternative spelling of headrush

(aviation) A pitot tube.

Alternative form of head-scratcher.

Assumed or borne, as a responsibility or something blameworthy. / Assigned by government authorities as a bounty or penalty.