The Collaborative International Dictionary of English v.0.48:

Genip \Gen"ip\, n., or Genip tree \Genip tree\
   1. Any tree or shrub of the genus Genipa.
      [Webster 1913 Suppl.]

   2. The West Indian sapindaceous tree Melicocca bijuga,
      which yields the honeyberry; also, the related trees
      Exothea paniculata and E. trifoliata; called also
      ginep.

   Syn: Spanish lime, Spanish lime tree, honey berry,
        mamoncillo, Melicocca bijuga, Melicocca bijugatus.
        [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

ginep \ginep\ n.
   A tropical American tree (Melicocca bijuga) bearing a small
   edible fruit with green leathery skin and sweet juicy
   translucent pulp. [Also spelled genip.]

   Syn: Spanish lime, Spanish lime tree, honey berry,
        mamoncillo, Melicocca bijuga, Melicoccus bijugatus.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

genip
    n 1: tropical American tree bearing a small edible fruit with
         green leathery skin and sweet juicy translucent pulp [syn:
         Spanish lime, Spanish lime tree, honey berry,
         mamoncillo, genip, ginep, Melicocca bijuga,
         Melicocca bijugatus]
    2: round one-inch Caribbean fruit with green leathery skin and
       sweet juicy translucent pulp; eaten like grapes [syn:
       genip, Spanish lime]