1. First Marquess Cornwallis commander of the British forces in the American War of Independence; was defeated by American and French troops at Yorktown (1738-1805)
  2. first trimester time period extending from the first day of the last menstrual period through 12 weeks of gestation
  3. first-degree burn burn causing redness of the skin surface
  4. first sergeant a sergeant in the Army above the rank of staff sergeant and below master sergeant
  5. first in first out inventory accounting in which the oldest items (those first acquired) are assumed to be the first sold
  6. first-aid station a station providing emergency care or treatment before regular medical aid can be obtained
  7. first-string of members of a team; not substitutes
  8. first rudiment the elementary stages of any subject (usually plural)
  9. first lieutenant a commissioned officer in the Army or Air Force or Marines ranking above a 2nd lieutenant and below a captain
  10. First Amendment an amendment to the U.S. Constitution guaranteeing freedoms
  11. recalcitrant stubbornly resistant to authority or control
  12. first estate the clergy in France and the heads of the church in Britain
  13. First Epistle to the Corinthians a New Testament book containing the first epistle from Saint Paul to the church at Corinth
  14. first person pronouns and verbs used to refer to the speaker
  15. first-come-first-serve not accepting reservations
  16. registrant a person who is formally entered in a register
  17. first-aid kit kit consisting of a set of bandages and medicines for giving first aid
  18. first-order correlation a partial correlation in which the effects of only one variable are removed (held constant)
  19. first appearance the act of beginning something new
  20. First State a Mid-Atlantic state; one of the original 13 colonies