1.  newcomer(n = noun.person) entrant, fledgeling, fledgling, freshman, neophyte, newbie, starter - any new participant in some activity; Array
is a kind of beginner, initiate, novice, tiro, tyro
has particulars: enlistee, recruit

2.  newcomer(n = noun.person) Array - a recent arrival; "he's a newcomer to Boston"
is a kind of arrival, arriver, comer
has particulars: malahini

   One who has lately come. [1913 Webster]

newcomer, n.
1 a person who has recently arrived.
2 a beginner in some activity.

N  extraneousness, extrinsicality, exteriority, alienage, alienism, foreign body, foreign substance, foreign element, alien, stranger, intruder, interloper, foreigner, novus homo, newcomer, immigrant, emigrant, creole, Africander, outsider, Dago, wop, mick, polak, greaser, slant, Easterner, Dutchman, tenderfoot, extraneous, foreign, alien, ulterior, tramontane, ultramontane, excluded, inadmissible, exceptional, in foreign parts, in foreign lands, abroad, beyond seas, over sea on one's travels.

N  inhabitant, resident, residentiary, dweller, indweller, addressee, occupier, occupant, householder, lodger, inmate, tenant, incumbent, sojourner, locum tenens, commorant, settler, squatter, backwoodsman, colonist, islander, denizen, citizen, burgher, oppidan, cockney, cit, townsman, burgess, villager, cottager, cottier, cotter, compatriot, backsettler, boarder, hotel keeper, innkeeper, habitant, paying guest, planter, native, indigene, aborigines, autochthones, Englishman, John Bull, newcomer, aboriginal, American, Caledonian, Cambrian, Canadian, Canuck, downeaster, Scot, Scotchman, Hibernian, Irishman, Welshman, Uncle Sam, Yankee, Brother Jonathan, garrison, crew, population, people, colony, settlement, household, mir, indigenous, native, natal, autochthonal, autochthonous, British, English, American, Canadian, Irish, Scotch, Scottish, Welsh, domestic, domiciliated, domiciled, naturalized, vernacular, domesticated, domiciliary, in the occupation of, garrisoned by, occupied by.