[ reynz ]
/ reɪnz /

plural noun

the kidneys.
the region of the kidneys, or the lower part of the back.
(especially in Biblical use) the seat of the feelings or affections, formerly identified with the kidneys.

Nearby words

  1. reinhardt,
  2. reinhardt, django,
  3. reinhardt, max,
  4. reinhold,
  5. reinnervation,
  6. reinsman,
  7. reinstall,
  8. reinstate,
  9. reinstatement,
  10. reinsurance

Origin of reins

before 1000; Middle English reines, reenes < Old French reins; compare Old English (once) rēnys; both < Latin rēnēs kidneys, loins (plural); cf. renal


[ reyn ]
/ reɪn /


verb (used with object)

to check or guide (a horse or other animal) by exerting pressure on a bridle bit by means of the reins.
to curb; restrain; control.

verb (used without object)

to obey the reins: a horse that reins well.
to rein a horse or other animal.

Origin of rein

1300–50; (noun) Middle English rene, reine, raine < Old French re(s)ne < Vulgar Latin *retina, noun derivative of Latin retinēre to hold back, retain; (v.) Middle English rainen, reinen, derivative of the noun

Related formsrein·less, adjectiveun·reined, adjective

Can be confusedrain reign rein Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for reins

British Dictionary definitions for reins


/ (reɪnz) /

pl n

archaic the kidneys or loins

Word Origin for reins

C14: from Old French, from Latin rēnēs the kidneys


/ (reɪn) /



(tr) to check, restrain, hold back, or halt with or as if with reins
to control or guide (a horse) with a rein or reinsthey reined left
See also rein in

Word Origin for rein

C13: from Old French resne, from Latin retinēre to hold back, from re- + tenēre to hold; see restrain


See reign

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for reins
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for reins


[ rānz ]


The kidneys, loins, or lower back.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Idioms and Phrases with reins


see draw in the reins; free hand (rein) tight rein on.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.