green·horn 
(grēnhôrn′)
(grēnhôrn′)n.
1. An inexperienced or immature person, especially one who is easily deceived.
2. A newcomer, especially one who is unfamiliar with the ways of a place or group.
[Middle English greene horn, horn of a newly slaughtered animal : grene, green; see GREEN + horn, horn; see HORN.]
- communal
- communalism
- communalist
- communalistic
- communality
- communalize
- communally
- Communard
- commune
- commune
- communer
- communicability
- communicable
- communicableness
- communicably
- communicant
- communicate
- communication
- communicational
- communication disorder
- communication engineering
- communicative
- communicatively
- communicativeness
- surround sound