A navy is a military force made up of boats and ships that are equipped for defense and fighting. If you always get seasick, you might think about joining an army instead of a navy.

During a war, a country's navy does the important job of protecting its shores, as well as attacking the enemy's coasts. A navy is made up of battleships, submarines, and smaller vessels, as well as planes that can land on aircraft carriers or on water. The color that's also called navy, a dark blue, was the original color of the British navy. The Latin root of navy is navis, "ship."

Definitions of navy
  1. noun
    an organization of military vessels belonging to a country and available for sea warfare
    synonyms: naval forces
    see moresee less
    type of:
    armed service, military service, service
    a force that is a branch of the armed forces
  2. noun
    a dark shade of blue
    synonyms: dark blue, navy blue
    see moresee less
    type of:
    blue, blueness
    blue color or pigment; resembling the color of the clear sky in the daytime
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week