Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class II. Words Relating to Space
Section II. Dimensions
1. General Dimensions

194. Expansion.

   NOUN:EXPANSION, dilation, expansibleness; increase [See Increase] -of size; enlargement, extension, augmentation; amplification, ampliation; aggrandizement, spread, increment, growth, development, pullulation [rare], swell, dilatation, rarefaction; turgescence or turgescency, turgidness, turgidity; dispansion [obs.]; obesity (size) [See Size]; hydrocephalus, hydrophthalmus; dropsy, tumefaction, intumescence, swelling, tumor, diastole, distension; puffing, puffiness; inflation; pandiculation.
  dilatability, expansibility.
  GROWTH, upgrowth; accretion [See Increase]; germination, budding, gemmation.
  bulb (convexity) [See Convexity]; plumper; superiority of size.
  OVERGROWTH, overdistension; hypertrophy, tympany.
   VERB:BECOME LARGER &c. (large [See Size]); expand, widen, enlarge, extend, grow, increase, incrassate, swell, gather; fill out; deploy, take open order, dilate, stretch, spread; mantle, wax; grow up, spring up; bud, burgeon or bourgeon, shoot, sprout, germinate, put forth, vegetate, pullulate, open, burst forth; gain flesh, gather flesh; outgrow; spread like wildfire, overrun.
  BE LARGER THAN; surpass &c. (be superior) [See Superiority].
  RENDER LARGER &c. (large [See Size]); expand, spread, extend, aggrandize, distend, develop, amplify, spread out, widen, magnify, rarefy, inflate, puff, blow up, stuff, pad, cram, bloat; exaggerate; fatten.
   ADJECTIVE:EXPANDED &c. v.; larger &c. (large [See Size]); swollen; expansive; wide open, widespread; fan-shaped, flabelliform; overgrown, exaggerated, bloated, fat, turgid, tumid, hypertrophied, dropsical; pot-bellied, swag-bellied [obs.]; œdematous or edematous, corpulent, obese, puffy, pursy, blowzy, distended; patulous; bulbous (convex) [See Convexity]; full-blown, full-grown, full-formed; big [See Size]; abdominous, enchymatous, rhipidate; tumefacient, tumefying.
  1. Her waist is ampler than her life, For life is but a span.—Holmes
  2. The more waist the less speed.—Cynic’s Calendar