1. intercalary year in the Gregorian calendar: any year divisible by 4 except centenary years divisible by 400
  2. intercalary having a day or month inserted to make the calendar year correspond to the solar year: "Feb. 29 is an intercalary day"
  3. internal rhyme a rhyme between words in the same line
  4. intercalate insert (days) in a calendar
  5. internal ear a complex system of interconnecting cavities
  6. interlayer a layer placed between other layers
  7. intercalation an insertion into a calendar
  8. intercellular located between cells
  9. interloper someone who intrudes on the privacy or property of another
  10. interlinear written between lines of text
  11. Wintera colorata evergreen shrub or small tree whose foliage is conspicuously blotched with red and yellow and having small black fruits
  12. interlocutor a person who takes part in a conversation
  13. interlard introduce one's writing or speech with certain expressions
  14. intercollegiate used of competition between colleges or universities
  15. intercostal artery several arteries and supplying the intercostal spaces of the rib cage
  16. interrogatory relating to the use of or having the nature of an interrogation
  17. undercarriage framework that serves as a support for the body of a vehicle
  18. interpret make sense of; assign a meaning to
  19. interrogator a questioner who is excessively harsh
  20. intricate having many complexly arranged elements; elaborate

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.