Definitions of words in Genesis 1:20:
Birds {International Standard Bible Encyclopedia}
Earth {Easton's Bible Dictionary}
Earth {International Standard Bible Encyclopedia}
Firmament {Easton's Bible Dictionary}
Firmament {International Standard Bible Encyclopedia}
Fly {Easton's Bible Dictionary}
Fly {International Standard Bible Encyclopedia}
Heaven {Easton's Bible Dictionary}
Heaven {International Standard Bible Encyclopedia}
In {International Standard Bible Encyclopedia}
Let {International Standard Bible Encyclopedia}
Open {International Standard Bible Encyclopedia}
Waters {International Standard Bible Encyclopedia}
God {Easton's Bible Dictionary}