Definitions of words in Revelation 21:18:
City {Easton's Bible Dictionary}
City {International Standard Bible Encyclopedia}
Glass {Easton's Bible Dictionary}
Glass {International Standard Bible Encyclopedia}
Gold {Easton's Bible Dictionary}
Gold {International Standard Bible Encyclopedia}
Wall {Easton's Bible Dictionary}
Wall {International Standard Bible Encyclopedia}
Building {Easton's Bible Dictionary}
Jasper {Easton's Bible Dictionary}