"neophyte" in the noun sense
1. neophyte
a plant that is found in an area where it had not been recorded previously
2. newcomer, fledgling, fledgeling, starter, neophyte, freshman, newbie, entrant
any new participant in some activity
3. catechumen, neophyte
a new convert being taught the principles of Christianity by a catechist
Source: WordNet® (An amazing lexical database of English)
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