| thicken(verb, place, set, secure, settle) |
| tie(verb, hold, set, secure, settle) |
| tone up(verb, expression, support, increase, establish) |
| toughen(verb, support, increase, establish, extend) |
| truss(verb, hold, secure, join, fasten) |
| unite(verb, hold, secure, join, fasten) |
| wax(verb, support, increase, establish, extend) |
| assure(verb, strengthen, fortify, reinforce) |
| chalk(strengthen, lacquering) |
| clasp(verb, secure, join, attach, clip) |
| clinch(verb, strengthen, fortify, reinforce) |
| clip(verb, secure, join, attach, clasp) |
| color(strengthen, lacquering) |
| deepen(strengthen, fortify) |
| enameled(strengthen, lacquering) |
| enameling(strengthen, lacquering) |
| fine tune(expression, strengthen, lacquering) |
| firm up(expression, strengthen, fortify) |
| fresco(strengthen, lacquering) |
| harmonize(strengthen, lacquering) |