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to fill up

to fill up

46 1.1
Become so crowded that nothing more can enter
  • phrasal verb
  • /fɪl ʌp/
translation icon : llenarse
  • Then the sun is uncovered again; the little room fills up with light.
  • fill up quickly

And so now we're having this giant backlog and this thing fills up fast.

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Examples

  • It's filling up with water.

  • Feel your lungs fill up with air.

  • All the platforms are filling up.

  • Their tears are filling up their glasses.

  • The place is filling up quickly, and a few couples venture onto the dance floor.

    Academic text (2006)
  • Everyone's families are coming out, so it's filling up fast.

  • Cold polar water is filling up the deep ocean basins all around the world.

  • Well, when it fills up, don't be afraid to call me.

  • Hush and fix that screen door before the house fills up with flies.

    Fiction book (1990)
  • The balloon began to fill up with air as she blew into it.

Synonyms

to fill
vsto fill up
1.0

To make a place full by putting people or things into it

focuses on becoming full rather than broader literal and figurative uses
to brim
vsto fill up
23 3.7

To be full to the top, often with a strong feeling

expresses general becoming full rather than extreme top or emotional fullness
to fill to the brim
vsto fill up
5 2.7

To make something so full that nothing else can fit

means becoming full but not necessarily to exact capacity limit

Antonyms

198 1.0

To let liquid flow away from something

13 6.3

To use up almost all of something so little is left

How Full

overflow
  • Specialized
5 3.9
to fill up
46 1.1
to fill
1.0

Surface Forms

fill up infinitive
filled up past
filled up past participle
filling up present participle
fills up third person singular

Morphology

fill + up

The meaning 'to eat until one is completely full' is directly derived from 'fill' (to make full) combined with the particle 'up', which signals completion or fullness. This compositional completion pattern is common in English and other languages, so a B1 learner who knows both constituents would readily infer the MWE meaning.

Etymology

The phrasal verb fill up shows the picture of a container or place slowly getting things inside until it reaches the top. With fill meaning 'put in' and up meaning 'to the top', it came to mean 'become full'.