Free or low-cost service in the field of law, for the indigent.

(intransitive, now rare) To resort to the help (of); to call on the support (of), especially to help prove an argument.

plural of buoyancy aid

A sign, worksheet or checklist designed to reduce avoidable mistakes in the workplace by helping a person remember what to do.

(UK) A policy that enables charities to reclaim the income tax on donations from taxpayers.

any object or device that is primarily used in facilitating human sexual pleasure

plural of sex aid

Synonym of service dog

The adjutant of a regiment.

plural of aid-major