n.
Function: noun
Date: 15th century
1 : a subsidy granted to the king by the English parliament until the 18th century for an extraordinary purpose
2 a : the act of helping b : help given : ASSISTANCE <providing aid and comfort> specifically : tangible means of assistance (as money or supplies)
3 a : an assisting person or group ― compare AIDE b : something by which assistance is given : an assisting device <an aid to understanding> <a visual aid > especially : HEARING AID
4 : a tribute paid by a vassal to his lord