What is the meaning of Telescope?

A monocular optical instrument that magnifies distant objects, especially in astronomy.

Any instrument used in astronomy for observing distant objects (such as a radio telescope).

A retractable tubular support for lights.

To extend or contract in the manner of a telescope.

To slide or pass one within another, after the manner of the sections of a small telescope or spyglass.

To come into collision, as railway cars, in such a manner that one runs into another.

To collapse, via cancellation.

Source: wiktionary.org