refers to the physical form of a person or animal.

can refer to a group of people or things regarded as a unit.

समूह

English Usage: The body of the committee met to discuss the issue.

Hindi Usage: समिति का समूह मुद्दे पर चर्चा करने के लिए मिला।

to move one's hand to and fro in greeting or as a signal.

to undulate or move in a smooth, flowing manner.

लहराना

English Usage: The flags waved in the breeze.

Hindi Usage: झंडे हवा में लहराए।