| stiffener(noun, hold, block, back, base) |
| stilt(noun, hold, block, back, base) |
| substratum(noun, hold, block, back, base) |
| substructure(noun, hold, block, back, base) |
| supporting structure |
| sustentation(noun, hold, block, back, base) |
| suture(noun, join, point, link, junction) |
| swivel(noun, join, point, link, junction) |
| symbiosis(noun, agreement, combination, accord, compound) |
| synthesis(noun, agreement, combination, accord, compound) |
| tangency(noun, join, point, link, junction) |
| thrust bearing(expression, idiom) |
| tie(noun, join, point, link, junction) |
| tie-in(noun, agreement, combination, accord, compound) |
| tie-up(noun, agreement, combination, accord, compound) |
| timber(noun, hold, block, back, base) |
| touching(contiguity, adjacency) |
| unanimity(noun, agreement, combination, accord, compound) |
| underpinning(noun, support, hold, block, back) |
| unification(noun, agreement, combination, accord, compound) |