- Every other year - Every second year - Lasting two years - Happening, or taking place, once in two years; as, a
biennial election. - Continuing for two years, and then perishing, as plants
which form roots and leaves the first year, and produce fruit the
second. - Something which takes place or appears once in two years;
esp. a biennial examination. - A plant which exists or lasts for two years.
- Canine lent out for hundredth anniversary - Hundredth anniversary - Relating to, or associated with, the commemoration of
an event that happened a hundred years before; as, a centennial ode. - Happening once in a hundred years; as, centennial
jubilee; a centennial celebration. - Lasting or aged a hundred years. - The celebration of the hundredth anniversary of any
event; a centenary.