noun

• Help; assistance; succor, relief.
• A helper; an assistant.
• Something which helps; a material source of help.
• An historical subsidy granted to the crown by Parliament for an extraordinary purpose, such as a war effort.
• An exchequer loan.
• A pecuniary tribute paid by a vassal to his feudal lord on special occasions.
• An aide-de-camp, so called by abbreviation.

verb

• To provide support to; to further the progress of; to help; to assist.
• To climb with the use of aids such as pitons.