4
upgrade(verb, increase, develop, improve, expand)
4
whet(verb, increase, disturb, encourage, raise)
3
arise(verb, advance, increase, turn, raise)
3
beef up(verb, expression, take, cover, increase)
3
boast(verb, inflate, falsify, exaggeration, distort)
3
climb(verb, advance, increase, raise, swell)
3
concentrate(verb, increase, raise, severe, boost)
3
dignify(verb, get, fix, increase, promote)
3
endow(verb, give, reward, award, bestow)
3
enkindle(verb, fire, stir, animate)
3
enrage(annoy, provoke, aggravate, impair, worsen)
3
fatten(verb, increase, open, develop, rise)
3
hike(verb, get, increase, open, develop)
3
hot up
3
kindle(verb, disturb, encourage, stimulate, fire)
3
make higher(verb, expression, increase, intensify)
3
overstate(verb, expand, color, inflate, falsify)
3
pad(verb, take, cover, advance, increase)
3
produce(verb, form, make, advance, increase)
3
promote(verb, get, give, increase, develop)
11 years ago|13k views|share |citing 
APASmart Define. (2015). heighten thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/heighten/thesaurus/synonyms
ChicagoSmart Define. 2015. "heighten thesaurus" https://smartdefine.org/heighten/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, heighten thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/heighten/thesaurus/synonyms>.
MLASmart Define. "heighten thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/heighten/thesaurus/synonyms>