What is the meaning of Explorer?

One who explores something

A person who by means of travel (notably an expedition) searches out new information.

Any of various hand tools, with sharp points, used in dentistry.

A visual representation of a file system etc. through which the user can navigate.

(Can we verify this sense?) Someone who is adventurous and free-thinking.

to explore

first-person singular present passive subjunctive of explōrō

to explore

Source: wiktionary.org