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to stack up

to stack up

8 3.2
Put things in a neat pile, one on top of another
  • phrasal verb
  • /stæ k ʌp/
translation icon : apilar
  • You have a cargo ship full of tons and tons of these stacked up cargo containers.
  • stacked up boxes
  • stacked up to the ceiling
  • stacked up on top

Then you can stack them up and store them or reuse them.

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Examples

  • Now why don't you guys stack up some of the boxes, and we'll move things around.

  • They stacked up the two substances to form a superlattice, a sandwich of layers only a few nanometers thick, and they had a clear aim in doing this.

    Blog text (17)
  • We'll stack these up here and you can get some idea of how much stuff has just come in.

  • -Stack up about a half dozen of these.

  • Stack them up along there.

  • Then you can stack them up and store them or reuse them.

  • Well, you can start by... stacking these up on the bench for me.

  • You can see them all stacked up, kind of like pennies stacked together.

  • He keeps his baseball cards in plastic sleeves, in notebooks, and he stacks them all up beside him when he watches important games.

    Fiction book (2002)
  • After collecting the old magazines, I decided to stack up them neatly on the shelf.

Synonyms

to pile
vsto stack up
255 1.2

To put things in a heap or stack

describes careful neat arrangement rather than crowded mass
to stack
vsto stack up
138 1.6

To put things in a neat pile one on top of another

is the phrasal form used in similar contexts
to pile up
vsto stack up
83 3.1

To put things on top of each other until they make a heap

focuses on neat arrangement one on top of another, not accumulation
to heap
vsto stack up
14 2.4

To put things into a pile

emphasizes tidy orderly arrangement one on top of another
to heap up
vsto stack up
1 2.5

Put things into a pile

focuses on making a single neat column rather than multiple groups

Antonyms

187 2.8

To spread small things like leaves or seeds over an area without order

To make something messy or not in the right order

How Neat

to stack up
8 3.2
to arrange
162 1.7
to heap up
1 2.5
to scatter
187 2.8

Surface Forms

stack up infinitive
stacked up past
stacked up past participle
stacking up present participle
stacks up third person singular

Morphology

stack + up

The meaning 'to accumulate' is directly derivable from combining 'stack' (to pile items) with 'up' (indicating upward increase or completion): piling things up naturally leads to a larger amount over time. This compositional motion/increase pattern is common cross-linguistically and follows a standard English verb+particle meaning, so a B1 learner who knows both constituents would likely infer the MWE's sense.

Etymology

Stack up comes from the simple image of putting things one on top of another: you make a stack and lift things up into a neat pile, so it's used to mean 'to arrange things in a neat pile'.