Synonyms for Enlarge:

n.

scale up, bulk out. build, upsurge, beef up, proliferate, soar, escalate, snowball, run up, wax, rise, mount, build up. explain, labor. enlarge (noun)
elaborate, blow up, dilate, flesh out, exposit, lucubrate, expand, expatiate, expound.

v.

expand (verb)
swell, develop, engorge, stretch, dilate, thicken, distend, spread.
extend (verb)
elongate, prolong.
increase (verb)
fatten, broaden, increase, augment, reinforce, add, burgeon, widen, advance, accrue, multiply, increment, upgrade, grow, lengthen, boost, amplify, maximize, raise, extend, magnify, heighten, expand, inflate, elevate.
make or grow bigger; increase (verb)
build, heighten, distend, broaden, spread, wax, upsurge, magnify, swell, expatiate, snowball, lengthen, mount, grow, expand, blow up, multiply, widen, stretch, elongate, inflate, augment, dilate, rise, amplify, beef up, develop, extend, boost, elaborate.

Other synonyms:

bulk out, scale up, upsurge. wax, escalate, snowball. proliferate, soar. mount. rise. build. expand
expand.
increase
boost, snowball.
intensify
heighten.
open up
widen.

Usage examples for enlarge

  1. I mentioned that the chiefs had promised to enlarge our fence; they kept to their word. – A Narrative of Captivity in Abyssinia With Some Account of the Late Emperor Theodore, His Country and People by Henry Blanc
  2. But we shall meet, perhaps, and talk over the past; at present I will not enlarge on it. – The Disowned, Complete by Edward Bulwer-Lytton
  3. But that I don't hold forth to worldly ears I would enlarge upon the immense social advantages of such a union for that dear child." – The Dop Doctor by Clotilde Inez Mary Graves