regular, normal, typical, natural mean being of the sort or kind that is expected as usual, ordinary, or average. regular stresses conformity to a rule, standard, or pattern.
having the same or a fixed system, procedure, etc., for something: The verb walk in English is a regular verb because it forms its past tense as walked. steady and even;
regular (comparative more regular, superlative most regular) (Christianity) Bound by religious rule; belonging to a monastic or religious order (often as opposed to secular). [from 14th c.] quotations
There are 44 meanings listed in OED's entry for the word regular, four of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.
You use regular when referring to the thing, person, time, or place that is usually used by someone. For example, someone's regular place is the place where they usually sit.