Definition of "Fill" :
noun: a quantity sufficient to satisfy
"He ate his fill of potatoes."
noun: any material that fills a space or container
"There was not enough fill for the trench."
verb: plug with a substance
"Fill a cavity."
verb: become full
"The pool slowly filled with water."
verb: make full, also in a metaphorical sense
"Fill a container."
verb: fill, satisfy or meet a want or need or condtion ro restriction
verb: fill to satisfaction
verb: eat until one is sated
"He filled up on turkey."
verb: appoint someone to (a position or a job)
verb: assume, as of positions or roles
verb: occupy the whole of
"The liquid fills the container."