#1 fill v. [fill up, make full] make full, also in a metaphorical sense; "fill a container"; "fill the child with pride". wn
#2 fill v. [fill up] become full; "The pool slowly filled with water"; "The theater filled up slowly". wn
#3 fill v. [occupy] occupy the whole of; "The liquid fills the container". wn
#4 fill v. [take, occupy] assume, as of positions or roles; "She took the job as director of development"; "he occupies the position of manager"; "the young prince will soon occupy the throne". wn
#5 fill v. [meet, satisfy, fulfill, fulfil] fill or meet a want or need. wn
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