Words That Start With Tri: Enhance Your Vocabulary with These Triple-Lettered Terms

Discover a variety of words starting with “tri” and learn their meanings and uses in everyday language.

  1. Triangle- A shape with three sides and three angles.
  2. Tribute- An act, statement, or gift intended to show gratitude, respect, or admiration.
  3. Trickle- To flow or fall in drops or in a thin stream.
  4. Tricycle- A vehicle similar to a bicycle, but with three wheels.
  5. Trio- A group of three people or items.
  6. Tripod- A three-legged stand for supporting a camera or other apparatus.
  7. Trivial- Of little value or importance.
  8. Trigger- A device that activates or releases or causes something to happen.
  9. Triolet- A short poem or stanza of eight lines that includes repetitions of the first line.
  10. Triad- A group or set of three related people or things.
  11. Tribunal- A body established to settle certain types of dispute.
  12. Triumph- A great victory or achievement.
  13. Tribal- Relating to a tribe or tribes.
  14. Trioxide- A chemical compound containing three atoms of oxygen.
  15. Tricolor- Consisting of three colors.
  16. Trigonometry- A branch of mathematics dealing with angles, triangles, and trigonometric functions.
  17. Triangle- A polygon with three edges and vertices,
  18. Trivia- Details, considerations, or pieces of information of little or no importance.
  19. Trilogy- A group of three related literary or artistic works.
  20. Triumvirate- A political regime dominated by three powerful individuals.
  21. Triton- A sea god in Greek mythology, typically represented as having the upper body of a man and the tail of a fish.
  22. Trimorph- Existing in three different forms.
  23. Triplicate- Consisting of or existing in three identical parts.
  24. Trisect- To divide into three equal parts.
  25. Tributary- A river or stream flowing into a larger river or lake.
  26. Trigraph- A group of three letters representing a single sound.
  27. Triplex- Consisting of three parts or layers.
  28. Triathlon- An athletic contest consisting of three different events, typically swimming, cycling, and running.
  29. Tripoli- A form of fine powdered earth used for polishing.
  30. Tripe- The stomach tissue of a cow, pig, or other animal, eaten as food.
  31. Trillion- The number equal to a thousand billion (1,000,000,000,000).
  32. Trinket- A small ornament or item of jewelry that is typically of little value.
  33. Trinity- The Christian Godhead as one God in three persons: Father, Son, and Holy Spirit.
  34. Triphthong- A complex vowel sound involving a quick movement of the articulators to produce the sound of three vowels in a single syllable.
  35. Tritium- A radioactive isotope of hydrogen.
  36. Tristate- Relating to an area encompassing three adjacent states.
  37. Triple- Consisting of or involving three parts, elements, or components.
  38. Trimester- A term of three months, especially as a division of the duration of pregnancy.
  39. Trivialize- Make something seem less important, significant, or complex than it really is.
  40. Tripwire- A wire stretched close to the ground, setting off an explosive or other device when disturbed.
  41. Triassic- Relating to or denoting the first period of the Mesozoic era, between the Permian and Jurassic periods.
  42. Tricolor- Something having three colors.
  43. Triplicate- One of three identical copies or things.
  44. Trichology- The branch of dermatology that deals with the scientific study of the health of hair and scalp.
  45. Trichotomy- A division into three categories.
  46. Trident- A three-pronged spear, especially as an attribute of Poseidon (Neptune) in classical mythology.
  47. Triage- The assignment of degrees of urgency to wounds or illnesses to decide the order of treatment of a large number of patients or casualties.
  48. Trihedral- Having three plane faces.
  49. Trilateral- Agreed upon or involving three parties, especially governments.
  50. Triphibian- Capable of operating on land, in the air, and on or under water.

This list includes a diverse array of terms beginning with “tri” that cover various fields and contexts.

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