There are 2 main definitions of compact in English:

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compact 1

Syllabification: com·pact

adjective

Pronunciation: /kəmˈpakt/
/ˈkämˌpakt/
1Closely and neatly packed together; dense: a compact cluster of houses
More example sentences
  • Rugosa roses make up a dense, compact hedge at the end of the garden without distracting from the sea view.
  • We snuggled together around the fire we had built, all together in a compact ball around the small flames.
  • Therefore, the shell wall is not compact or dense and is, in fact, poorly defined.
Synonyms
dense, close-packed, tightly packed;
thick, tight, firm
1.1Having all the necessary components or features neatly fitted into a small space: a compact car
More example sentences
  • It had to be compact enough to fit in the tight shelf space reserved for impulse buys at the supermarket.
  • Be assured, this latest XJ is compact enough to fit into a normal-size garage, and can easily cope with the tight spaces of multi-storey car parks.
  • The device would fit all sizes of pram or buggy, including three-wheelers, and was compact enough to fit into the overhead lockers on aeroplanes.
Synonyms
informal teeny, teeny-weeny
little-bitty, itty-bitty;
Scottish wee
1.2(Of a person or animal) small, solid, and well-proportioned.
Example sentences
  • The compact cat made one short, inconceivably fast motion, and the overbearing ferret jerked backward then collapsed to the pavement in a limp heap.
  • The modern bouvier de Flandres is a powerful but compact dog.
  • Overall the sheltie is a compact dog with a moderately long head, the tiniest of ears and an expression of wisdom and kindness.
1.3(Of speech or writing) concise in expression: a compact summary of the play
More example sentences
  • His writing is compact, there is description and dialogue here, but nothing extraneous to the plot, or plots, of which there are many.
  • Those who wish to read an overview of cancer of the lung will find this concise and compact book very useful.
  • Soon, we have witnessed a compact summary of the scientist's obsessive quest to develop a genetically modified human being.
Synonyms
2 [predicative] (compact of) archaic Composed or made up of: towns compact of wooden houses
More example sentences
  • Canada is a compact of some very different people who have all managed to remain united through their common loyalty to the Crown of Canada.

verb

Pronunciation: /kəmˈpakt/
[with object] Back to top  
1Exert force on (something) to make it more dense; compress: the soil may be compacted by iron oxide (as adjective compacted) compacted paper waste
More example sentences
  • The more dense and compacted the snow is the easier it will be to perform slides.
  • I was forced to compact a six-shelf collection of boxes for my impending move and my collection would take up a lot less weight and room if this was implemented sooner.
  • Gasoline or diesel engines drive an eccentric weight at a high speed to develop compaction force and vibrations that compact granular soils.
Synonyms
compress, condense, pack down, press down, tamp (down), flatten
informal smoosh
1.1 [no object] (Of a substance) become compressed: the snow hardened and compacted
More example sentences
  • Some of the most dominating physical features I've ever encountered, a glacier is a vast mass of ice formed from the accumulation of snow that compacts faster than it melts and sublimates.
  • His throat burned for oxygen and he felt his ribs compressing, compacting, and ready to break.
  • This process causes the snow to compact as it slowly diminishes creating a solid crust base and surface.
1.2 archaic Form (something) by pressing its component parts firmly together.
Example sentences
  • Carried to its extreme, this hypothesis suggests that at one time all the matter of the universe was compacted together.
  • If the anti-universe was compacted together, how can we be on the surface of anything?
1.3Express in fewer words; condense: the ideas are compacted into two sentences
More example sentences
  • In the way that des Esseintes imagines literature as being compacted into a single chiseled phrase, Huysmans sees the mother as being condensed into the perfection of a prayer that invokes and replaces her.
  • Listening to this astonishing 6-track set is like listening to the entire history of music compacted into short sweet segments.
  • Great music for lazy drives and porch sunsets, like a summer evening compacted into handy CD form.

noun

Pronunciation: /ˈkämˌpakt/
Back to top  
1A small flat case containing face powder, a mirror, and a powder puff.
Example sentences
  • Looking once more in her compact's mirror, she got out of the limo and ran up to hug him.
  • There were lipstick holders, compacts and mirrors discreetly designed to go inside.
  • Veréd Cosmetiqué's bronzing powder is encased in a beautiful silver compact with a mirror and separate compartment for the brush applicator.
2Something that is a small and conveniently shaped example of its kind, in particular.
Example sentences
  • If you have a good printer or photo studio, you will hardly be able to tell them from work by a conventional compact.
  • Trumpf will display the VectorMark compact, a valuable tool for various industrial and commercial marking tasks.
  • Used as a family snapshot camera it's on a par with early colour compacts, using cheap colour film and cheap laboratory processing.
2.1 short for compact car.
3 Metallurgy A mass of powdered metal compacted together in preparation for sintering.
Example sentences
  • Most titanium metal powders currently available in commercial quantities do not have sufficient purity to produce ductile metal compacts.

Origin

Late Middle English: from Latin compact- 'closely put together, joined', from the verb compingere, from com- 'together' + pangere 'fasten'.

Derivatives

compaction

1
Pronunciation: /kəmˈpakSHən/
noun
Example sentences
  • And it occurred to me that maybe my neck was shrinking too, and that was beginning that compaction.
  • Not only that, there is the question of how to deal with the compaction of material in order to ensure a long lifespan of the project itself.
  • Then interlocking cobble blocks are laid and pressed using a German machine that ensures proper compaction.

compactly

2
adverb
Example sentences
  • There is also an interview from 1999 at the back of the book and notes for each of the sixteen selections, all compactly presented in a 472-page book.
  • Again, plenty of flavour, and presented very attractively - compactly and neatly in the centre of a huge plate, looking rather like the food page in an upmarket Sunday supplement.
  • He says what's needed is ‘effective density,’ where people live compactly in relative proximity to the places where they work.

compactness

3
noun
Example sentences
  • And what do this brevity and compactness achieve?
  • Welles liked the brevity and compactness, the swiftness and shock of a good short story.
  • I am exhausted, but that ground is in better shape than it has been for years, judging by the compactness of the soil when I started.

compactor

4
Pronunciation: /kəmˈpaktər/ /käm-/ /ˈkämˌpaktər/
(also compacter) noun
Example sentences
  • These loans are used to purchase equipment such as dumpers, excavators, motor graders, compactors, pavers, cranes, dozers and several more depending on the requirements of the project.
  • Shut down all the trash compactors on the detention level.
  • To avoid this, we are planning to make use of closed compactors.

Words that rhyme with compact

abreact, abstract, act, attract, bract, contract, counteract, diffract, enact, exact, extract, fact, humpbacked, impact, interact, matter-of-fact, pact, protract, redact, refract, retroact, subcontract, subtract, tact, tract, transact, unbacked, underact, untracked

Definition of compact in:

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There are 2 main definitions of compact in English:

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compact 2 Syllabification: com·pact

noun

Pronunciation: /ˈkämˌpakt/
A formal agreement or contract between two or more parties.
Example sentences
  • All the Liberal Party candidates refused to sign the compact.
  • In fact, a ‘one license limit’ is a condition of participation among states that are parties to the compact.
  • An interstate compact is an agreement between two or more states that allows this practice model.
Synonyms

verb

Pronunciation: /ˈkämˌpakt/
[with object] Back to top  
Make or enter into (a formal agreement) with another party or parties: the Democratic Party compacted an alliance with dissident groups

Origin

Late 16th century: from Latin compactum, past participle of compacisci, from com- 'with' + pacisci 'make a covenant'. Compare with pact.

Definition of compact in:

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