Wiktionary
n. The right of people to hold any religious beliefs, or none, and to carry out any practices in accordance with those beliefs or with that absence of belief, so long as these practices do not interfere with other people's legal or civil rights, or any reasonable laws, without fear of harm or prosecution.
WordNet
n. a civil right guaranteed by the 1st amendment to the US constitution
Wikipedia
Freedom of religion or freedom of belief is a principle that supports the freedom of an individual or community, in public or private, to manifest religion or belief in teaching, practice, worship, and observance. It also includes the freedom to change one's religion or belief.
Freedom of religion is considered by many people and nations to be a fundamental human right. In a country with a state religion, freedom of religion is generally considered to mean that the government permits religious practices of other sects besides the state religion, and does not persecute believers in other faiths.
Usage examples of "freedom of religion".
And even fourteen-year-olds have freedom of religion in this country.
Like this bit about the freedom of religion not meaning the town can't put up a creche at Christmas, the speech not including fornicating in the streets, assembly not including rioting, property subject to legal usage, and trial not meaning damnfool stuff like throwing anyone who knows anything off a jury, things like that.
The developing Islamic Republic, like its predecessor Iran, was a fundamental Islamic state where freedom of religion was not recognized and freedom of speech and the press was severely suppressed.
He could do that under freedom of religion, I suppose, seeing as how man can't control God but can only ask favors of Him.
For all the long months since the Ring of Fire I had been urging caution, if not outright condemning the up-timers for their belief in freedom of religion.
Verily enjoyed the cheerful hypocrisy of American freedom of religion.