[ {"front": "ἡ γῆ", "back": ["earth", "land"]},...

[
  {"front": "ἡ γῆ", "back": ["earth", "land"]},
  {"front": "ὁ οὐρανός", "back": ["sky", "heaven"]},
  {"front": "ἡ θάλαττα", "back": ["sea"]},
  {"front": "ὁ ποταμός", "back": ["river"]},
  {"front": "τὸ ὄρος", "back": ["mountain"]},
  {"front": "τὸ δένδρον", "back": ["tree"]},
  {"front": "ὁ λίθος", "back": ["stone", "rock"]},
  {"front": "ὁ ἥλιος", "back": ["sun"]},
  {"front": "ὁ ἄνεμος", "back": ["wind"]},
  {"front": "τὸ ὕδωρ", "back": ["water"], "note": "3rd decl., stem ὑδατ-"},
  {"front": "ἡ νῆσος", "back": ["island"], "note": "feminine despite -ος ending"},
  {"front": "ἡ ὁδός", "back": ["road", "way"], "note": "feminine despite -ος ending"},
  {"front": "ἡ νύξ", "back": ["night"], "note": "3rd decl., stem νυκτ-"},
  {"front": "ἡ ἀγορά", "back": ["agora", "marketplace"]},
  {"front": "ὁ οἶκος", "back": ["house", "home"]}
]