1. (initialism) .  (British, trade union) '''A'''ssociation of '''P'''rofessional, '''Ex'''ecutive, Clerical and Computer Staff.
  2. (acronym) .  (aviation) Advanced Purchase Excursion (Air fare).
  3. Noun.  The highest point of something.
  4. Noun.  (figuratively) The moment of greatest success, expansion, etc.
  5. Noun.  (geometry) The topmost vertex of a cone or pyramid (in their conventional orientation).
  6. Noun.  (chiefly, anatomy) The pointed end of something.
  7. Noun.  (botany) The end of a leaf, petal or similar organ opposed to the end where it is attached to its support; the tip.
  8. Noun.  (astronomy) The point on the celestial sphere toward which the sun appears to move relative to nearby stars.
  9. Noun.  (mining, US) The end or edge of a vein nearest the surface..

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.