Thayer's Greek Lexicon

 1. among the Persians a grand enclosure or preserve, hunting
ground, park, shady and well watered, in which wild animals,
were kept for the hunt; it was enclosed by walls and furnished
with towers for the hunters
2. a garden, pleasure ground
  1) grove, park
3. the part of Hades which was thought by the later Jews to be
the abode of the souls of pious until the resurrection: but
some understand this to be a heavenly paradise
4. the upper regions of the heavens. According to the early
church Fathers, the paradise in which our first parents dwelt
before the fall still exists, neither on the earth or in the
heavens, but above and beyond the world