What is the meaning of Environment?

The surroundings of, and influences on, a particular item of interest.

The natural world or ecosystem.

All the elements that affect a system or its inputs and outputs.

A particular political or social setting, arena or condition.

The software or hardware existing on any particular computer system.

The environment of a function at a point during the execution of a program is the set of identifiers in the function's scope and their bindings at that point.

The set of variables and their values in a namespace that an operating system associates with a process.

environment

Source: wiktionary.org