Services sold by a company during a particular period of time.

Maybe that particular period, seven years ago, had been critical.

This particular period ended in the early 1990s when those players left the club.

The value of the goods and services produced by a national economy over a particular period.

It was very difficult to remember who had been for what at which particular period.

There is no evidence that people who want to take the test over a particular period of time are not able to.

All my life I have never wanted for friends, but at this particular period they seemed to spring up around me like mushrooms.

Perhaps he was the greatest leader of that particular period.

Thus a group of people who were born on a day or in a particular period, say 1948, form a birth cohort.

Sometimes people date and fall in love during a particular period of spiritual growth for one or both.