| range | ambit, compass, orbit, purview, reach, scope, sweep |
| reach | achieve, attain, gain, compass |
| real | actual, true, existent |
| reap | garner, gather, gleam, harvest |
| reason | intuition, understanding, judgement |
| rebellion | revolution, revolt, mutiny, insurrection, uprising |
| recede | ebb, retract, retreat, retrograde [ADVANCE] |
| reciprocate | requite, return |
| reckless | rash, precipitate, foolhardy, temerarious |
| recoil | blench, quail, shrink, flinch |
| recover | regain, recoup, retrieve |
| refer | advert, mention |
| refrain | abstain, forbear |
| refuse | decline, reject, spurn, rebuff |
| regard | esteem, admiration, respect |
| regret | sorrow, grief, anguish, woe, heartache, heartbreak |
| relevant | pertinent, germane, material, apposite, apropos [IRRELEVANT] |
| reliable | dependable, responsible, trustworthy |
| relieve | allay, alleviate, assuage, lighten, mitigate, palliate |
| religious | devout, pious, sanctimonious |
| relinquish | yield, resign, abandon, surrender, cede, waive, renounce |
| rely | trust, depend, reckon |
| remainder | rest, balance, residue, residuum, remnant, leavings, remains |
| remember | bethink, recall, recollect [FORGET] |
| reparation | redress, amends, restitution, indemnity |
| repeat | iterate, reiterate, restate |
| replace | supplant, supersede |
| represent | delineate, depict, limn, picture, portray |
| resort | apply, go, refer, turn |
| responsible | answerable, liable, accountable, amenable |
| rest | relaxation, repose, leisure, ease, comfort |
| restrain | curb, check, bridle, inhibit |
| return | revert, recur, recrudesce |
| reveal | expose, disclose, divulge, betray |
| revere | worship, venerate, adore, idolize |
| reverse | invert, transpose |
| revive | restore, resuscitate, revivify |
| rhythm | meter, cadence |
| rich | affluent, flush, loaded, moneyed, wealthy [POOR] |
| ridicule | mock, taunt, twit, deride, gibe |
| right | privilege, prerogative, perquisite, birthright |
| rise | ascend, climb, soar, tower, mount, surge |
| rival | compete, vie, emulate |
| room | elbowroom, latitude, leeway, margin, play, scope |
| rough | harsh, jagged, rugged, scabrous, uneven |
| rude | crude, primitive, raw, rough |
| ruin | raze, demolish, destroy, wreck |
| rural | bucolic, rustic, pastoral |
| sad | melancholy, sorrowful, doleful, woebegone, desolate |
| same | identical, selfsame, very [DIFFERENT] |
| sarcastic | ironic, caustic, satirical, sardonic |
| satiate | sate, cloy, glut, gorge, surfeit |
| satisfy | answer, fill, fullfil, meet |
| save | rescue, reclaim, redeem, deliver |
| saying | maxim, adage, saw, motto, epigram, proverb, aphorism |
| scatter | disperse, dissipate, dispel |
| scold | upbraid, berate, revile, vituperate, rail |
| scream | shriek, screech |
| secret | stealthy, covert, clandestine, furtive, surreptitious, underhand |
| see | behold, note, notice, espy, descry, observe, contemplate, survey, view, perceive, discern, remark |
| seek | hunt, quest, search |
| seem | appear, look |
| send | dispatch, forward, route, ship, transmit |
| sensuous | sensual, luxurious, voluptuous, sybaritic, epicurean |
| sentimental | bathetic, maudlin, mawkish, mushy, romantic, schmaltzy, slushy, soppy |
| separate | divide, part, sever, sunder, divorce |
| series | succession, progression, sequence, chain, train, string |
| serious | sober, grave, solemn, earnest, sedate, staid |
| servitude | bondage, slavery |
| severe | stern, austere, ascetic, strict |
| shade | penumbra, shadow, umbra, umbrage |
| shake | tremble, quake, quiver, shiver, shudder |
| shameless | brazen, barefaced, brash, impudent, unblushing |
| shapleless | amorphous, formless, unformed, unshaped [SHAPELY] |
| share | participate, partake |
| sharp | keen, acute |
| shelter | cover, retreat, refuge, asylum, sanctuary |
| shorten | abbreviate, abridge, curtail, truncate [LENGTHEN] |
| shout | bawl, bellow, holler, howl, roar, whoop, yell |
| show | display, expose, parade, exhibit, flaunt |
| showy | flamboyant, ostentatious, pretentious, splashy |
| shrewd | sagacious, astute, perspicacious |
| shy | bashful, diffident, modest, coy, demure |
| sign | badge, mark, token, symptom, note |
| silent | reticent, reserved, taciturn, secretive, uncommunicative, tightlipped |
| sincere | unaffected, unfeigned, wholehearted, hearty, heartfelt |
| single | sole, unique, solitary, lone, separate |
| sinister | baleful, malign |
| slant | incline, lean, slope, tilt, tip |
| sleek | glossy, satiny, silken, silky, slick |
| slide | slip, glide, coast, skid, slither |
| sloppy | slovenly, unkempt, slipshod |
| slow | dilatory, leisurely, laggard, deliberate |
| sly | cunning, tricky, crafty, wily, foxy, artful, guileful |
| small | diminutive, little, miniature, minuscule, minute, petite, tiny, wee [LARGE] |
| smell | aroma, odor, scent |
| smile | grin, simper, smirk |
| social | companionable, convivial, gregarious, sociable [ANTISOCIAL] |
| solitude | isolation, seclusion, retirement |
| solve | decipher, resolve, unravel |
| sour | acid, acidulous, dry, tart |
| spacious | ample, capacious, commodious, roomy |
| sparing | frugal, thrifty, economical |
| speak | talk, converse, discourse |
| speed | hurry, hasten, quicken, accelerate, precipitate |
| spend | disburse, expend [SAVE] |
| spontaneous | impulsive, instinctive, involuntary, automatic |
| stain | blot, brand, stigma, taint |
| stammer | stutter |
| standard | benchmark, criterion, gauge, measure, touchstone, yardstick |
| state | condition, situation, status |
| stay | remain, wait, abide, tarry, linger, sojourn |
| steady | even, equable, uniform, constant |
| steal | purloin, filch, snitch, pilfer, cop, hook, swipe, lift, pinch |
| steep | abrupt, precipitous, sheer |
| stem | arise, derive, emanate, flow, issue, originate |
| stench | fetor, malodor, reek, stink |
| sterile | infertile, barren, unfruitful, impotent |
| stiff | rigid, inflexible, inelastic, tense |
| still | quiet, silent, noiseless, soundless |
| stingy | close, close-fisted, niggardly, penny-pinching, miserly, parsimonious, penurious, tight |
| stoop | condescend, deign |
| stop | cease, desist, discontinue, halt, quit [START] |
| strange | peculiar, odd, queer, quaint, outlandish, singular, eccentric, curious |
| streak | strain, vein |
| strength | power, might, energy, force |
| strip | divest, denude, bare |
| strong | stout, sturdy, tough, stalwart, tenacious |
| strut | swagger, swank |
| stupid | slow, dumb, dull, obtuse, dense |
| suave | smooth, urbane, diplomatic, politic |
| subject | matter, topic, theme |
| substance | burden, core, gist, pith, purport |
| sufficient | adequate, enough [INSUFFICIENT] |
| suggest | imply, hint, intimate, insinuate |
| summit | peak, pinnacle, acme, apex, zenith, climax |
| superficial | shallow, cursory |
| superfluous | excess, extra, spare, supernumerary, surplus, supererogatory |
| supervise | boos, overlook, oversee, superintend |
| support | uphold, back, advocate, champion |
| supposed | conjectural, hypothetical, putative, reputed, suppositious, supposititious [CERTAIN] |
| suppress | stifle, repress |
| sure | certain, confident, positive |
| surprise | astonish, amaze, astound, dumbfound, flabbergast |
| surrender | submission, capitulation |
| surround | circle, compass, encircle, encompass, environ, gird, girdle, ring |
| swerve | depart, deviate, digress, diverge, stray, veer |
| swing | oscillate, sway, rock, vibrate, fluctuate, undulate, waver |
| symbol | attribute, emblem |