The promotion of secular policies like the separation of church and state. Not to be confused with Secularization, which aims to be a purely objective and value-free theory of in the sociology of religion. The USA is a secular state because the Constitution forbids establishment of a religion, but it is not secularised compared with much of the rest of the Western world.
attitude that tends to find the ultimate explanation of everything and the final end of human beings in what reason and the senses can discover, rather than in any spiritual or transcendental belief. (p. 423)
Secularism generally refers to an ideology that promotes the secular (as opposed to the religious) particularly within the public sphere. In current usage there are at least two distinct ways of defining the term.