What is the meaning of Secular?

Not specifically religious; lay or civil, as opposed to clerical; profane.

Temporal; worldly, or otherwise not based on something timeless.

Not bound by the vows of a monastic order.

Happening once in an age or century.

Continuing over a long period of time, long-term.

Centuries-old, ancient.

Relating to long-term non-periodic irregularities, especially in planetary motion or magnetic field.

Unperturbed over time.

A secular ecclesiastic, or one not bound by monastic rules.

A church official whose functions are confined to the vocal department of the choir.

A layman, as distinguished from a clergyman.

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Source: wiktionary.org