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."