[ sin-yoo ]
/ ˈsɪn yu /


a tendon.
Often sinews. the source of strength, power, or vigor: the sinews of the nation.
strength; power; resilience: a man of great moral sinew.

verb (used with object)

to furnish with sinews; strengthen, as by sinews.

Nearby words

  1. sine prole,
  2. sine qua non,
  3. sine wave,
  4. sinecure,
  5. sinemet,
  6. sinewy,
  7. sinfjotli,
  8. sinfonia,
  9. sinfonietta,
  10. sinful

Origin of sinew

before 900; Middle English; Old English sinu (nominative), sinuwe (genitive); cognate with Dutch zenuw, German Sehne, Old Norse sin; akin to Sanskrit snāva sinew

Related formssin·ew·less, adjectiveun·sin·ewed, adjectiveun·sin·ew·ing, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sinew

British Dictionary definitions for sinew


/ (ˈsɪnjuː) /


anatomy another name for tendon
(often plural)
  1. a source of strength or power
  2. a literary word for muscle
Derived Formssinewless, adjective

Word Origin for sinew

Old English sionu; related to Old Norse sin, Old Saxon sinewa, Old High German senawa sinew, Lettish pasainis string

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

Medicine definitions for sinew


[ sĭnyōō ]


A tendon.
Vigorous strength; muscular power.

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