Even during the course of a day, the weight can vary by 5 to 10%.

The weight varies depending on habitat and time of the year.

The common weight of a business card varies some by location.

The weight of the bar has varied over the years.

His weight hasn't varied more than three pounds in the last 10 years, he said.

Her weight hadn't varied more than three pounds since the day she was married.

Since June, his weight never varied more than a few pounds all summer.

Its weight after some atmospheric burning would vary between 2,600 and 4,400 pounds.