noun

1. the space surrounding or seeming to overarch the earth, in which the sun, moon, and stars appear; visible sky; firmament: in pl., used with the
2. Theol.
   1. a state or place of complete happiness or perfect rest, attained by the good after death; specif. esp., in Christian theology, the state or place of perfect union with God and so of eternal life and supreme happiness, attained by the elect after death
   2. popularly the abode of God, his angels, and the blessed
   3. those in heaven
   4. the powers of heaven; also, God Heaven help you!
3. 1. any place of great beauty and pleasure
   2. a state of great happiness

Etymology: ME heven < OE heofon < IE base *em-, to cover (> LL camisia, shirt): akin to OHG himil and to OS hevan, ON, himinn (dat. hifne), with -fn, -v-n < -mn by dissimilation