Verb

(en verb)

To put in vigorous action.

To make use of, to apply, especially of something non-material.

*{{quote-book, year=1963, author=(Margery Allingham), title=(The China Governess)

, chapter=19 citation , passage=Meanwhile Nanny Broome was recovering from her initial panic and seemed anxious to make up for any kudos she might have lost, by exerting her personality to the utmost. She took the policeman's helmet and placed it on a chair, and unfolded his tunic to shake it and fold it up again for him.}}

* {{quote-news, year=2012, date=18 April, author=Phil McNulty, work=BBC Sport

, title= Chelsea 1-0 Barcelona , passage=Di Matteo clearly saw Drogba's power as a potential threat to a Barcelona defence stripped of Gerard Pique - but he barely caught sight of goal in a first 45 minutes in which the Catalans exerted their technical superiority.}}

Verb

(operat)

(transitive, or, intransitive) To perform a work or labour; to exert power or strength, physical or mechanical; to act.

(transitive, or, intransitive) To produce an appropriate physical effect; to issue in the result designed by nature; especially (medicine) to take appropriate effect on the human system.

(transitive, or, intransitive) To act or produce effect on the mind; to exert moral power or influence.

* Atterbury

The virtues of private persons operate but on a few.

* Jonathan Swift

A plain, convincing reason operates on the mind both of a learned and ignorant hearer as long as they live.

To perform some manual act upon a human body in a methodical manner, and usually with instruments, with a view to restore soundness or health, as in amputation, lithotomy, etc.

(transitive, or, intransitive) To deal in stocks or any commodity with a view to speculative profits.

(transitive, or, intransitive) To produce, as an effect; to cause.

* {{quote-magazine, date=2012-01, author=Robert L. Dorit, volume=100, issue=1, page=23

, magazine= , title= Rereading Darwin , passage=We live our lives in three dimensions for our threescore and ten allotted years. Yet every branch of contemporary science, from statistics to cosmology, alludes to processes that operate on scales outside of human experience: the millisecond and the nanometer, the eon and the light-year.}}

(transitive, or, intransitive) To put into, or to continue in, operation or activity; to work.

to operate a machine

* {{quote-magazine, date=2013-06-14, author=(Jonathan Freedland)

, volume=189, issue=1, page=18, magazine=(The Guardian Weekly) , title= Obama's once hip brand is now tainted , passage=Now we are liberal with our innermost secrets, spraying them into the public ether with a generosity our forebears could not have imagined. Where we once sent love letters in a sealed envelope, or stuck photographs of our children in a family album, now such private material is despatched to servers and clouds operated by people we don't know and will never meet.}}