1. heterodyne oscillator an oscillator whose output heterodynes with the incoming radio signal to produce sum and difference tones
  2. personal letter a letter dealing with personal affairs
  3. covering letter a letter sent along with other documents to provide additional information
  4. business letter a letter dealing with business
  5. upper-case letter one of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasis
  6. lower-case letter the characters that were once kept in bottom half of a compositor's type case
  7. varsity letter an award earned by participation in a school sport
  8. Gordon setter a Scottish breed with a black-and-tan coat
  9. self acceptance an acceptance of yourself as you are, warts and all
  10. trade acceptance a bill of exchange for a specific purchase
  11. precipitance the quality of happening with headlong haste or without warning
  12. nonacceptance the act of refusing an offer
  13. banker's acceptance banking: a time draft drawn on and accepted by a bank
  14. before Christ before the Christian era
  15. capital letter one of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasis
  16. scarlet letter the letter A in red; Puritans required adulterers to wear it
  17. polyphonic letter a letter that has two or more pronunciations
  18. precipitancy the quality of happening with headlong haste or without warning
  19. veteran soldier a serviceman who has seen considerable active service
  20. business leader a very wealthy or powerful businessman