fill up meaning and definition

FILL UP verb

Definition of fill up (verb)

1. make full, also in a metaphorical sense
   • "fill a container"; "fill the child with pride"
   • synonyms: fill, make full
   • antonym: empty
2. become full
   • "The pool slowly filled with water"; "The theater filled up slowly"
   • synonyms: fill
   • antonym: discharge
3. fill or stop up
   • "Can you close the cracks with caulking?"
   • synonyms: close
4. eat until one is sated
   • "He filled up on turkey"
   • synonyms: fill