the measurement or extent of something from side to side

wide extent

पहलु

English Usage: The breadth of the river was impressive.

Hindi Usage: नदी की पहलु प्रभावशाली थी।

the range or scope of something

दायरा

English Usage: The breadth of the discussion covered many topics.

Hindi Usage: गुफ्तगू का दायरा कई विषयों को शामिल किया।