[ throo ]
/ θru /




Nearby words

  1. throttle valve,
  2. throttle-body injection,
  3. throttleable,
  4. throttlebottom,
  5. throttlehold,
  6. through a glass darkly,
  7. through and through,
  8. through bass,
  9. through bridge,
  10. through drainage


    through and through,
    1. through the whole extent of; thoroughly: cold through and through.
    2. from beginning to end; in all respects: an aristocrat through and through.

Origin of through

before 900; Middle English (preposition and adv.), metathetic variant of thourgh, Old English thurh, cognate with German durch; akin to Old English therh, Gothic thairh through, Old High German derh perforated, Old English thyrel full of holes (adj.), hole (noun). See thirl

Can be confusedthrew through

Synonym study

8. See by1. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for through and through


/ (θruː) /




through some specified thing, place, or period of time
thoroughly; completely
Also: (informal or poetic) thro', (informal or poetic) thro, (chiefly US) thru

Word Origin for through

Old English thurh; related to Old Frisian thruch, Old Saxon thuru, Old High German duruh

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 through and through



c.1300, metathesis of Old English þurh, from West Germanic *thurkh (cf. Old Saxon thuru, Old Frisian thruch, Middle Dutch dore, Dutch door, Old High German thuruh, German durch, Gothic þairh "through"), from PIE root *tere- "to cross over, pass through, overcome" (cf. Sanskrit tirah, Avestan taro "through, beyond," Latin trans "beyond," Old Irish tre, Welsh tra "through").

Not clearly differentiated from thorough until early Modern English. Spelling thro was common 15c.-18c. Reformed spelling thru (1917) is mainly American English.

Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with through and through

through and through

In every part or aspect, throughout. For example, I was wet through and through, or He was a success through and through. This idiom originally was used to indicate literally penetration, as by a sword. The figurative usage was first recorded in 1410.


In addition to the idioms beginning with through

  • through and through
  • through one's hat
  • through one's head
  • through one's mind
  • through rose-colored glasses
  • through the mill
  • through the motions
  • through thick and thin

, see

  • break through
  • carry through
  • come through
  • come up (through)
  • cross (pass through) one's mind
  • fall between (through) the cracks
  • fall through
  • follow through
  • get through
  • get through one's head
  • go through
  • go through channels
  • go through the motions
  • go through the roof
  • jump through hoops
  • leaf through
  • let daylight through
  • let slip (through the fingers)
  • lie through one's teeth
  • live through
  • muddle through
  • pay through the nose
  • pull through
  • put through
  • put someone through his or her paces
  • rise through the ranks
  • run through
  • sail through
  • see through
  • see through rose-colored glasses
  • sink through the floor
  • sit out (through)
  • sleep through
  • squeak by (through)
  • squeeze through
  • talk through one's hat
  • think through
  • win through
  • work one's way into (through)
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.