participant

[ pahr-tis-uh-puhnt ]

/ pɑrˈtɪs ə pənt /

a person or group that participates; partaker.

participating; sharing.

Origin of participant

1520–30; < Latin participant- (stem of participāns), present participle of participāre. See participate, -ant

1 participator, associate, contributor, colleague.

par·tic·i·pant·ly, adverb un·par·tic·i·pant, adjective

The Moscow protest was not sanctioned, which meant every participant risked arrest.

Russia’s Rebel In Chief Escapes House Arrest |Anna Nemtsova |December 30, 2014 |DAILY BEAST
He eventually ended up at as a digital producer for Participant Media.

‘Dear White People’: How An Ex-Publicist’s Twitter Became One of the Year’s Most Important Films |Marlow Stern |October 30, 2014 |DAILY BEAST
Take Zara, a participant in a University of Arkansas, Fayetteville study on these relationships.

Face It—We Rubes Will Never Live Like Gwyneth and Jennifer Aniston |Rachel Bertsche |July 2, 2014 |DAILY BEAST
After one participant discussed the shooting with police, his fellow gang members allegedly conspired to kill him, too.

The FBI Declares War on L.A.’s Crips |Andrew Romano |June 18, 2014 |DAILY BEAST

A third participant directed us to the mosque where the Taliban Five were most likely to pray.

My Search for the Taliban Five |Josh Rogin |June 15, 2014 |DAILY BEAST
But a factor of all was that Lulu herself was the participant, not the onlooker.

Miss Lulu Bett |Zona Gale
They are jockeying for that "something to boot" which always makes at least one participant satisfied in a mountain mule trade.

Sergeant York And His People |Sam Cowan
With acute sagacity he grasped the significance of the fateful events, in which he was a participant.

The Evidence in the Case |James M. Beck
Had there ever in the history of combat been a participant who had gone into it unafraid?

Combat |Dallas McCord Reynolds
I do not intend to cross out this statement about the most striking landmark of Paris, the participant in most of my vistas.

Paris Vistas |Helen Davenport Gibbons