riddance, n. deliverance, relief, disencumbrance.

riddle, n. enigma, puzzle, problem, rebus, crux, conundrum, paradox.

rider, n. equestrian, horseman; equestrienne (female), jockey, postilion.

ridge, n. crest; whelk.

ridicule, n. mockery, gibe, jeer, burlesque, raillery, satire, sarcasm, irony.

ridicule, v. deride, satirize, scoff, rally, banter, burlesque, lampoon, mock, scout, jeer, taunt, twit.

ridiculous, a. preposterous, absurd, farcical, burlesque, ludicrous.

riding boots. top boots.

riding on horseback. equestrianism, equitation.

rife, a. abounding, prevalent, plentiful, replete.

rifle, v. strip, fleece, despoil, pillage, devastate.

rift, n. cleft, fissure, crack, gap, crevice, cranny, break, chink.

rig, v. equip; bedizen, accouter.

rigging, n. dress, tackle, equipment, gear.

right, a. just, true, equitable, honest, rightful, lawful, correct, true, accurate, reasonable, ethical, condign, appropriate, proper, suitable, seemly, relevant, consistent, fortunate, auspicious, favorable; dexter, dextral, dextrorse.

right, v. correct, rectify, emend; make restitution, redress.

right, n. prerogative, privilege, immunity, exemption.

right, n. uprightness, rectitude, probity, integrity, propriety, justice, morality, virtue, equity; title, claim; authority.  Associated words:  ethics, casuistry, deontology, redress, ethology, aretology.

right along. continuously, constantly, uninterruptedly.

right away. immediately, straightway, right off, instantly, instanter, at once.

righteous, a. pious, religious, devout, godly, saintly; equitable, just, right.

righteousness, n. godliness, holiness, sanctity.  Antonym:  unrighteousness.

right-handed, a. dexterous.

right-handedness, n. dexterity, dextrality.

rigid, a. inflexible, stiff, unyielding, unpliant; rigorous, severe, austere, strict.

rigidity, n. stiffness, inflexibility, severity, rigor.

rigmarole, n. (Colloq.) nonsense, flummery, balderdash, twaddle.

rigor, n. rigidity, inflexibility, austerity, severity, asperity, sternness, inclemency, stringency.

rigorous, a. severe, stringent, strict, unyielding; inclement, severe.

rile, v. (Colloq.) roil; anger, vex, offend.

rill, n. streamlet, rivulet, runnel, brook.

rily, a. (Colloq.) roily, turbid.

rim, n. brim, margin, edge, brink, verge, border; felly (rim of a wheel).

rime, n. hoarfrost.

rind, n. skin, peel.  Antonym:  pulp.

ring, v. sound, resound, reverberate; toll, knell, chime, ding, tinkle, clang.

ring, n. circle, hoop; grommet, gimmal, terret, manilla, lute; annulation, annulet.  Associated Words:  annular, annularity, annulate, signet, dactyliology, dactylioglyphy, dactylioglyph, cameo, intaglio, lapidary, lapidist, posy.