grow,
mature, progress, advance, change, ripen, improve
arise,
result, happen, stem, come, come into being
acquire,
pick up, foster, create, breed, get, obtain
expand,
build up, enlarge, extend, increase, widen, work up
antonym: contract
work
out, flesh out, expound, fill in, explain, elaborate, enlarge,
amplify
antonym: outline
build
on, exploit, utilize, build
improve,
do up, renovate, refurbish, remodel, upgrade