An oscillation that travels through space and matter, transferring energy from one point to another.

A widespread occurrence; a surge of some phenomenon.

एक व्यापक घटना; किसी घटना का उभार।

English Usage: There was a wave of protests following the announcement.

Hindi Usage: घोषणा के बाद विरोध की लहर थी।

A band of colors produced by separation of the components of light by their different degrees of refraction.

A range or variety of something.

किसी चीज़ की एक श्रृंखला या विविधता।

English Usage: There is a spectrum of opinions on the issue.

Hindi Usage: इस मुद्दे पर राय की एक श्रृंखला है।