See Also: oncer(dictionary)

oncer (iou)



oncer noun. colloq. L19.
[from ONCE + -ER1.]
A person who or thing which does a particular thing only once; a thing that occurs only once. L19.
A one-pound note. Now Hist. M20.
(An election of) an MP thought likely only to serve one term. Austral. L20.