Synonyms of expansion

expansion

noun

ik-ˈspan(t)-shən 

1

as in increase

something added (as by growth)

the museum's new wing is only the first in a series of expansions planned for the next decade

Synonyms & Similar Words

• increase
• boost
• addition
• gain
• rise
• augmentation
• raise
• increment
• proliferation
• accrual
• accretion
• accumulation
• supplement
• continuation
• plus
• uptick
• step-up
• addendum
• extension
• more
• collection
• complement
• gathering
• upturn
• spike
• jump
• appendix
• accession
• assemblage
• uptrend
• run-up

Antonyms & Near Antonyms

• reduction
• decrease
• loss
• shrinkage
• depletion
• decline
• diminution
• lowering
• fall
• abatement
• lessening
• decrement
• diminishment
• deduction
• falloff
• drop-off
• subtraction
• step-down

2

as in evolution

the act or process of going from the simple or basic to the complex or advanced

the expansion of remedial reading classes into a district-wide program using school volunteers for a variety of needs

Synonyms & Similar Words

• evolution
• development
• progress
• progression
• growth
• advancement
• improvement
• emergence
• elaboration
• enhancement
• maturation
• flowering
• refinement
• incubation
• betterment
• maturing
• augmentation
• ripening
• metamorphosis
• addition
• flourishing
• supplementation
• blossoming
• evolvement
• perfection

Antonyms & Near Antonyms

• regression
• reversion
• retrogression
• regress
• lapse
• decline
• relapse
• degradation
• deterioration
• decay
• falling
• weakening
• degeneration
• devaluation
• downfall
• degeneracy
• declination
• descent
• downgrade
• decadence
• declension
• backslide
• decaying
• ebbing

3

as in expanse

a wide space or area

we gazed in awe at the star-strewn expansion of nighttime sky above us

Synonyms & Similar Words

• expanse
• stretch
• length
• extent
• sheet
• distance
• reach
• breadth
• plain
• field
• spread
• scope
• territory
• waste
• depth
• extension
• domain
• spectrum
• scale
• sphere
• sweep
• range
• amplitude
• void
• span
• compass
• magnitude
• gamut
• latitude
• emptiness
• immensity

Example Sentences

Recent Examples of expansion

Unlike some hyperscalers, Amazon builds its own data centers rather than relying on heavily indebted neocloud providers, giving it greater control over its AI expansion. — Alexa Lomonaco,kevin Stankiewicz, CNBC, 6 Nov. 2026

Still, Cava’s rapid expansion comes as consumers face mounting financial pressure. — Sheryl Estrada, Fortune, 6 Nov. 2026

While some solar and battery storage is part of that mix, most of the expansion will be powered by gas. — Kristi Swartz, AJC.com, 6 Nov. 2026

The relationship between audio and cinema is one of expansion, not competition. — Lexy Perez, HollywoodReporter, 6 Nov. 2026