A group of leopards is called a lepe or leap.
Lis forLitter (animals)
A group of fruit trees, usually planted in straight rows, is called an orchard.
An orchestra is a large group of people together, all playing musical instruments. There are a particular number of each kind of musical instrument in an orchestra. Orchestras can play beautiful music, and people often go out to a special place like a theatre just to listen to an orchestra play. A person who directs an orchestra is called a conductor.
A pair of things is two things. You usually use the word pair to describe two very similar things, like a pair of birds. Some things only come in pairs - like a pair of glasses or a pair of trousers. Many other things usually come in pairs but can be separated, like a pair of socks, shoes or gloves.