What does expansion mean?

Definitions for expansion
ɪkˈspæn ʃənex·pan·sion

Here are all the possible meanings and translations of the word expansion.

Princeton's WordNet

  1. expansion, enlargement(noun)

    the act of increasing (something) in size or volume or quantity or scope

  2. expansion(noun)

    a function expressed as a sum or product of terms

    "the expansion of (a+b)^2 is a^2 + 2ab + b^2"

  3. expansion, enlargement, elaboration(noun)

    a discussion that provides additional information

  4. expansion, expanding upon(noun)

    adding information or detail


  1. Expansion(n.)

    an enlarged or extended version of something, such as a writing or discourse; as, the journal article is an expansion of the lecture she gave.

  2. Expansion(n.)

    (Economics & Commmerce) an increase in the production of goods and services over time, and in the volume of business transactions, generally associated with an increase in employment and an increase in the money supply. Opposite of contraction.

  3. Origin: [L. expansio: cf. F. expansion.]


  1. expansion(Noun)

    The act or process of expanding.

    The expansion of metals and plastics in response to heat is well understood.

  2. expansion(Noun)

    The fractional change in unit length per unit length per unit temperature change.

  3. expansion(Noun)

    A new addition.

    My new office is in the expansion behind the main building.

  4. expansion(Noun)

    A product to be used with a previous product.

    "This expansion requires the original game-board."

Webster Dictionary

  1. Expansion(noun)

    the act of expanding or spreading out; the condition of being expanded; dilation; enlargement

  2. Expansion(noun)

    that which is expanded; expanse; extend surface; as, the expansion of a sheet or of a lake; the expansion was formed of metal

  3. Expansion(noun)

    space through which anything is expanded; also, pure space

  4. Expansion(noun)

    enlargement or extension of business transactions; esp., increase of the circulation of bank notes

  5. Expansion(noun)

    the developed result of an indicated operation; as, the expansion of (a + b)2 is a2 + 2ab + b2

  6. Expansion(noun)

    the operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston

  7. Expansion(noun)

    the enlargement of the ship mathematically from a model or drawing to the full or building size, in the process of construction

  8. Origin: [L. expansio: cf. F. expansion.]


  1. Expansion

    In geometry, expansion is a polytope operation where facets are separated and moved radially apart, and new facets are formed at separated elements. Equivalently this operation can be imagined by keeping facets in the same position but reducing their size. According to Coxeter, this multidimensional term was defined by Alicia Boole Stott for creating new polytopes, specifically starting from regular polytopes to construct new uniform polytopes. The expansion operation is symmetric with respect to a regular polytope and its dual. The resulting figure contains the facets of both the regular and its dual, along with various prismatic facets filling the gaps created between intermediate dimensional elements. It has somewhat different meanings by dimension. In a Wythoff construction, an expansion is generated by reflections from the first and last mirrors. By dimension: ⁕A regular {p} polygon expands into a regular 2n-gon. ⁕The operation is identical to truncation for polygons, t0,1{p} and has Coxeter-Dynkin diagram . ⁕A regular {p,q} polyhedron expands into a polyhedron with vertex figure p.4.q.4. ⁕This operation for polyhedra is also called cantellation, t0,2{p,q}, and has Coxeter-Dynkin diagram .For example, a rhombicuboctahedron can be called an expanded cube, expanded octahedron, as well as a cantellated cube or cantellated octahedron.

The Foolish Dictionary, by Gideon Wurdz


    A combination of Grand Larceny and Piracy, involving the destruction of the Constitution and Declaration of Independence.--Boston. The benevolent assimilation of previously oppressed peoples--Washington, D.C. A doubtful commercial experiment.--Wall Street. The white man's burden.--Kipling.

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'expansion' in Spoken Corpus Frequency: #2817

  2. Written Corpus Frequency

    Rank popularity for the word 'expansion' in Written Corpus Frequency: #4055

  3. Nouns Frequency

    Rank popularity for the word 'expansion' in Nouns Frequency: #1199

How to pronounce expansion?

  1. Alex
    US English

How to say expansion in sign language?

  1. expansion


  1. Chaldean Numerology

    The numerical value of expansion in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of expansion in Pythagorean Numerology is: 9

Examples of expansion in a Sentence

  1. Jennifer Bailey:

    We are actively working on expansion plans.

  2. Maharishi Mahesh Yogi:

    The purpose of life is the expansion of happiness.

  3. Charles M. Schwab:

    There's no limit possible to the expansion of each one of us.

  4. Brandon Garic Notch:

    The human mind demands intellectual expansion and expression.

  5. Brandon Garic Notch:

    The human mind demands intellectual expansion and expression.”

Images & Illustrations of expansion

  1. expansionexpansionexpansionexpansionexpansion

Popularity rank by frequency of use


Translations for expansion

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"expansion." Definitions.net. STANDS4 LLC, 2019. Web. 15 Nov. 2019. <https://www.definitions.net/definition/expansion>.

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