communicant (n.)

• adorer
• adviser
• announcer
• annunciator
• authority
• beadsman
• believer
• brother
• catechumen
• celebrant
• channel
• chapelgoer
• churchgoer
• churchman
• communicator
• congregation
• convert
• devotee
• disciple
• evangelist
• fanatic
• follower
• gossipmonger
• grapevine
• idolater
• informant
• informer
• interviewee
• laic
• layman
• monitor
• mouthpiece
• neophyte
• newsmonger
• parishioner
• petitioner
• prayer
• press
• proselyte
• publisher
• radio
• receiver
• religionist
• reporter
• revivalist
• saint
• secular
• sister
• source
• spokesman
• suppliant
• supplicant
• television
• teller
• theist
• tipster
• tout
• truster
• venerator
• votary
• witness
• worshiper
• zealot