1. developer someone who develops real estate
  2. undeveloped undeveloped or unused
  3. interloper someone who intrudes on the privacy or property of another
  4. develop progress or evolve through a process of natural growth
  5. developed being changed over time, as to be stronger or more complete
  6. envelope a flat container for a letter or thin package
  7. redevelop formulate or develop again, of an improved theory or hypothesis
  8. spathe flower any of various plants of the genus Spathiphyllum having a white or green spathe and a spike of fragrant flowers and often cultivated as an ornamental
  9. belly flopper a dive in which the abdomen bears the main force of impact with the water
  10. underdeveloped not yet fully developed
  11. pit viper New World vipers with hollow fangs and a heat-sensitive pit on each side of the head
  12. pay envelope wages enclosed in an envelope for distribution to the wage earner
  13. water development making an area of water more useful
  14. pad of paper a number of sheets of paper fastened together along one edge
  15. envelop enclose or enfold completely with or as if with a covering
  16. highly-developed (used of societies) having high industrial development
  17. window envelope an envelope with a transparent panel that reveals the address on the enclosure
  18. van de Velde Belgian architect (1863-1957)
  19. ribbon development building complex in a continuous row along a road
  20. walloper a very hard hitter