n.
Function: noun
Date: before 12th century
1 : a full supply especially : a quantity that satisfies or satiates <eat your fill >
2 : something that fills: as a : material used to fill a receptacle, cavity, passage, or low place b : a bit of instrumental music that fills the pauses between phrases (as of a vocalist or soloist) c : artificial light used in photography to reduce or eliminate shadows ― often used attributively < fill flash>