- in consequence of that; as a result; consequently: I think; therefore I am.
Origin of therefore
1125–75; Middle English ther(e)fore, variant of therfor therefor
SynonymsSee more synonyms for on Thesaurus.com
Therefore, wherefore, accordingly, consequently, so, then all introduce a statement resulting from, or caused by, what immediately precedes. Therefore (for this or that reason) and wherefore (for which reason) imply exactness of reasoning; they are especially used in logic, law, mathematics, etc., and in a formal style of speaking or writing. Accordingly (in conformity with the preceding) and consequently (as a result, or sequence, or effect of the preceding), although also somewhat formal, occur mainly in less technical contexts. So (because the preceding is true or this being the case) and then (since the preceding is true) are informal or conversational in tone.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for therefore
Therefore, it is not possible for any F-35 schedule to include a video data link or infrared pointer at this point.Pentagon Misfires in Stealth Jet Scandal
January 8, 2015
It's cheesy and ludicrous and, therefore, delightful; it's the reading equivalent of hate-watching.‘A Gronking to Remember’ Speed Read: 8 Naughtiest Bits
January 7, 2015
Therefore, some Democrats are under pressure to take policy actions their union allies oppose.How Public Sector Unions Divide the Democrats
December 29, 2014
Therefore, we should—you guessed it—develop the Canadian tar sands and build the Keystone pipeline.How Canadian Oilmen Pinkwash the Keystone Pipeline
December 28, 2014
This may be the case—but it is not remotely plausible evidence that this attack was therefore orchestrated by North Korea.No, North Korea Didn’t Hack Sony
December 24, 2014
The searchers, therefore, were directed to beat up the near-by country.
More than a bare recital of the wretched facts, therefore, is not seemly.
As a foil to his austerity, therefore, she would be audaciously gay in his presence.
From that time, therefore, Captain Rushton was known as Mr. Smith.Brave and Bold
Nevertheless, I have many things to thank him for, and therefore he deserves praise.Explorations in Australia
- thus; hence: used to mark an inference on the speaker's partthose people have their umbrellas up: therefore, it must be raining
- consequently; as a resultthey heard the warning on the radio and therefore took another route
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 therefore
Online Etymology Dictionary, © 2010 Douglas Harper