Verb

(es)

To furnish proof of, to show.

This certificate witnesses his presence on that day.

* 1667': round he throws his baleful eyes / That '''witness'd huge affliction and dismay — John Milton, ''Paradise Lost , Book 1 ll. 56-7

To take as evidence.

*

To see or gain knowledge of through experience.

He witnessed the accident.

* R. Hall

This is but a faint sketch of the incalculable calamities and horrors we must expect, should we ever witness the triumphs of modern infidelity.

* Marshall

General Washington did not live to witness the restoration of peace.

To present personal religious testimony; to preach at (someone) or on behalf of.

* 1998 , "Niebuhr, Reinhold", Routledge Encyclopedia of Philosophy , volume 6?, page 842

Instead, Niebuhr's God was the God witnessed to in the Hebrew Scriptures and the New Testament, the Bible of the Christian world.

To see the execution of (a legal instrument), and subscribe it for the purpose of establishing its authenticity.

to witness a bond or a deed

Verb

(explor)

(obsolete) To seek for something or after someone.

To examine or investigate something systematically.

* {{quote-magazine, year=2013, month=May-June, author= Katie L. Burke

, title= In the News , volume=101, issue=3, page=193, magazine=(American Scientist) , passage=Bats host many high-profile viruses that can infect humans, including severe acute respiratory syndrome and Ebola. A recent study explored the ecological variables that may contribute to bats’ propensity to harbor such zoonotic diseases by comparing them with another order of common reservoir hosts: rodents.}}

To travel somewhere in search of discovery.

(medicine) To examine diagnostically.

To (seek) experience first hand.

To be engaged exploring in any of the above senses.

To wander without any particular aim or purpose.

*

They stayed together during three dances, went out on to the terrace, explored' wherever they were permitted to ' explore , paid two visits to the buffet, and enjoyed themselves much in the same way as if they had been school-children surreptitiously breaking loose from an assembly of grown-ups.