Triannual vs Triennial - What's the difference?

triannual | triennial |

Triannual is a related term of triennial.


As adjectives the difference between triannual and triennial

is that triannual is happening three times each year while triennial is happening every three years.

As a noun triennial is

a third anniversary.

Other Comparisons: What's the difference?

triannual

English

Adjective

(-)
  • Happening three times each year.
  • Usage notes

    * To avoid confusion between "triennial", once every three years, and "triannual", three times in one year, it is often better to substitute a less ambiguous phrase such as "three times a year" or "every four months".

    See also

    * triennial (every three years) which is sometimes confused with triannual (usually every four months). * biennial (every two years). * biannual (twice a year). ** semiannual (also twice a year).

    triennial

    English

    Adjective

    (-)
  • Happening every three years.
  • triennial elections
  • Lasting for three years.
  • triennial''' parliaments; a '''triennial reign
    (Howell)

    Synonyms

    * (rare) trieterical

    See also

    * triennially

    Noun

    (en noun)
  • A third anniversary.