noun, plural blasphemies.
impious utterance or action concerning God or sacred things.
an act of cursing or reviling God.
pronunciation of the Tetragrammaton (YHVH) in the original, now forbidden manner instead of using a substitute pronunciation such as Adonai.
Theology. the crime of assuming to oneself the rights or qualities of God.
irreverent behavior toward anything held sacred, priceless, etc.: He uttered blasphemies against life itself.

1175–1225; Middle English blasphemie < Late Latin blasphēmia < Greek. See blasphemous, -y3

nonblasphemy, noun, plural nonblasphemies.

1. profanity, cursing, swearing; sacrilege, impiety. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
blasphemy (ˈblæsfɪmɪ)
n , pl -mies
1.  blasphemous behaviour or language
2.  law Also called: blasphemous libel the crime committed if a person insults, offends, or vilifies the deity, Christ, or the Christian religion

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

early 13c., from O.Fr. blasfemie "blasphemy," from L.L. blasphemia, from Gk. blasphemia "a speaking ill, impious speech, slander," from blasphemein "to speak evil of." Second element is pheme "utterance" (see fame); first element uncertain, perhaps related to blaptikos "hurtful,"
though blax "slack (in body and mind), stupid" also has been suggested.
Online Etymology Dictionary, © 2010 Douglas Harper
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Bible Dictionary

Blasphemy definition

In the sense of speaking evil of God this word is found in Ps. 74:18; Isa. 52:5; Rom. 2:24; Rev. 13:1, 6; 16:9, 11, 21. It denotes also any kind of calumny, or evil-speaking, or abuse (1 Kings 21:10; Acts 13:45; 18:6, etc.). Our Lord was accused of blasphemy when he claimed to be the Son of God (Matt. 26:65; comp. Matt. 9:3; Mark 2:7). They who deny his Messiahship blaspheme Jesus (Luke 22:65; John 10:36). Blasphemy against the Holy Ghost (Matt. 12:31, 32; Mark 3:28, 29; Luke 12:10) is regarded by some as a continued and obstinate rejection of the gospel, and hence is an unpardonable sin, simply because as long as a sinner remains in unbelief he voluntarily excludes himself from pardon. Others regard the expression as designating the sin of attributing to the power of Satan those miracles which Christ performed, or generally those works which are the result of the Spirit's agency.

Easton's 1897 Bible Dictionary
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Encyclopedia Britannica


irreverence toward a deity or deities and, by extension, the use of profanity.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Some would call this wit, others blasphemy.
For superstitious sailors, having a woman on a boat at all is just plain
  dangerous, but a woman skipper is viewed as blasphemy.
Take your lies and blasphemy elsewhere.
There are things you can joke about and things that constitute blasphemy.
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