Dictionary and Thesaurus

Definition of Fill Up

• (verb) become full; "The pool slowly filled with water"; "The theater filled up slowly"
• (verb) make full, also in a metaphorical sense; "fill a container"; "fill the child with pride"
• (verb) eat until one is sated; "He filled up on turkey"
• (verb) fill or stop up; "Can you close the cracks with caulking?"

Synonyms of Fill Up

• Fill
• Make Full
• Fill
• Close
• Fill

Antonyms of Fill Up

• Empty
• Empty

Homophones of Fill Up