Antonym: contraction. Similar words: mansion, expand, tension, pension, explosion, transition, dimension, extension. Meaning: [-nʃn] 
n. 1. the act of increasing (something) in size or volume or quantity or scope 2. a discussion that provides additional information 3. adding information or detail.
n. 1. the act of increasing (something) in size or volume or quantity or scope 2. a discussion that provides additional information 3. adding information or detail. 
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1 The company intends a slow-down in expansion.
2 The company was now set for major expansion.
3 Heat causes the expansion of gases.
4 Their much-touted expansion plans have come to nothing.
5 Expansion was made possible by the investment of government money.
6 The rapid expansion of cities can cause social and economic problems.
7 There are plans for the expansion of our school building.
8 Poor trading figures put back our plans for expansion.
9 Expansion into new areas of research is possible.
10 The plan will give an impulse to industrial expansion.
11 The board decided to embark on aggressive overseas expansion.
12 The expansion of higher education will continue.
13 His economic policies paved the way for industrial expansion.
14 She has some ambitious expansion plans for her business.
15 The country was on the cusp of economic expansion.
16 The expansion plans will face fierce opposition/resistance from environmentalists.
17 We are going for maximum expansion.
18 Expansion of the company has continued apace .
19 The design of the front pockets allows for expansion.
20 This revolutionary expansion required energetic nation-building policies.
21 The economy is still showing healthy expansion.
22 During the first phase of expansion staff will move to the new offices.
23 The company believes there is scope for expansion in this sector.
24 The vast expansion in secondary education is putting an enormous strain on the system.
25 Various problems have put the company's expansion plans into reverse.
26 The new digital technology would allow a rapid expansion in the number of TV channels.
27 The company has promised wide consultation on its expansion plans.
28 The years 2000 - 01 saw the continuation of the university's planned expansion.
29 The time has come for the firm to consolidate after several years of rapid expansion.
30 Despite the recession the company is confident of further expansion.
More similar words: mansion, expand, tension, pension, explosion, transition, dimension, extension, dimensions, transmission, comprehension, transit, transient, companion, session, mission, version, expedition, translation, transaction, envision, invasion, decision, division, emission, explanation, exploration, provision, recession, commission.