Letters that make triennial
a, e, l, n, r, t, i are letters that make 'triennial'
a, e, l, n, r, t, i are letters that make 'triennial'
2 possible definitions for 'triennial'
Under this definition, triennial is a noun and has the following properties:
tercentennial, tercentenary have the same meaning as 'triennial'
'triennial' can be a type of anniversary, day of remembrance.
Under this definition, triennial is an adjective and has the following properties:
periodic, periodical are similar to 'triennial'.