Q10U1A1D2R1E1N1N1I1A1L1
21 points
QUADRENNIAL is validvalid
an event that occurs every four years [n QUADRENNIALS]
lasting four years; occurring once every four years [adj QUADRENNIALLY] / an event taking place every four years [n -S]
an event that occurs every four years [n QUADRENNIALS]
lasting four years; occurring once every four years [adj QUADRENNIALLY] / an event taking place every four years [n -S]