Blasphemy (noun)

1. The act or offense of speaking sacrilegiously about God or sacred things; profanity.
2. Irreverence toward something considered sacred or inviolable.
3. An impious utterance or action concerning God or sacred things.

Origin:

Middle english blasfemie, from old english blæsfēmiā, from latin blasphēmia, from greek blasphēmia, from blasphēmos speaking evil, from blaptein to injure + phēmē speech.

Examples:

1. The blasphemy laws were used to punish those who spoke out against the government.
2. It is considered blasphemy to speak ill of the prophet.
3. He was charged with blasphemy for his controversial novel.
4. The act of burning the holy book was considered blasphemy.
5. His comments were seen as blasphemy by many in the religious community.