occurring at fixed intervals or in a repeated pattern

ordinary or typical

सामान्य

English Usage: It was just a regular day at the office.

Hindi Usage: यह कार्यालय में बस एक सामान्य दिन था।

the occurrence of a second thing in place of another

a repeated change or succession

परिवर्तनशीलता

English Usage: There was an alternation of joy and sorrow during the event.

Hindi Usage: कार्यक्रम के दौरान खुशी और दुख का परिवर्तनशीलता था।

conforming to a standard or pattern

consistent in performance

विशिष्ट

English Usage: The service here is regular and dependable.

Hindi Usage: यहां की सेवा नियमित और विश्वसनीय है।