| rudimentary(adjective, simple, straightforward, basic, fundamental) |
| rudiments(worthiness, ethos, ideals) |
| rudiments |
| run-down(noun, report, detail, explanation, description) |
| rundown(report, account, picture, explanation, writing) |
| rune(noun, character, sign, picture, capital) |
| schedule(noun, feature, part, plan, point) |
| score(noun, report, detail, explanation, description) |
| sentence structure(expression, worthiness, ethos, ideals) |
| sign(noun, information, character, influence, picture) |
| signal(noun, information, influence, inspiration, key) |
| signpost(noun, information, influence, guide, key) |
| signs(picture, symbol, pictograph) |
| simple(adjective, straightforward, basic, fundamental, uncomplicated) |
| simplest(adjective, simple, straightforward, basic, fundamental) |
| simplex(adjective, simple, straightforward, basic, fundamental) |
| simplified(adjective, simple, straightforward, basic, fundamental) |
| sine qua non(noun, expression, idiom, law, condition) |
| singularity(noun, feature, part, plan, point) |
| specialty(noun, feature, part, plan, point) |