| concrete(verb, combine, amalgamate, harden) |
| firm up(verb, phrasal verb, harden, solidify) |
| anneal(verb, harden, solidify, concrete) |
| cake(verb, harden, solidify, concrete) |
| calcify(verb, harden, solidify, concrete) |
| callus(verb, harden, solidify, concrete) |
| case-harden(verb, harden, solidify, concrete) |
| clot(verb, harden, solidify, concrete) |
| coagulate(verb, harden, solidify, concrete) |
| congeal(verb, harden, solidify, concrete) |
| crystalize(verb, harden, solidify, concrete) |
| crystallize(verb, harden, solidify, concrete) |
| encrust(verb, harden, solidify, concrete) |
| gel(verb, harden, solidify, concrete) |
| gelate(verb, harden, solidify, concrete) |
| gelatinize(verb, harden, solidify, concrete) |
| harden(verb, solidify, concrete, indurate) |
| incrust(verb, harden, solidify, concrete) |
| indurate(verb, harden, solidify, concrete) |
| jell(verb, harden, solidify, concrete) |