Synonyms of thickens

1 Syllable
clot, swell, jell, cake, gel, add
2 Syllables
stiffen, jelly, expand, freeze, buttress, harden, curdle, clabber, deepen, widen, congeal
3 Syllables
petrify, ossify, condense, reinforce, enlarge
4 Syllables
inspissate, solidify
5 Syllables
coagulate