par·tic·i·pant 
(pär-tĭsə-pənt)
(pär-tĭsə-pənt)n.
One that participates, shares, or takes part in something.
adj.
Sharing in or taking part; participating.
par·tici·pance n.
- interrogatorily
- interrogatory
- interrupt
- interrupter
- interruptible
- interruption
- interruptive
- interscholastic
- interscholastically
- inter se
- intersect
- intersection
- intersectionality
- intersession
- intersessional
- intersex
- intersexual
- intersexuality
- intersexually
- interspace
- interspatial
- interspecies
- interspecific
- intersperse
- interspersedly