/ ˈdʒɔɪnə(r); NAmE / noun
1.
( BrE ) a person whose job is to make the wooden parts of a building, especially window frames, doors, etc.
—compare carpenter
2.
a person who joins an organization, club, etc. :
All joiners will receive a welcome pack.
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WORD ORIGIN
Middle English : from Old French joigneor , from joindre to join.