year with one additional day (4)
I believe the answer is:
leap
(Other definitions for leap that I've seen before include "identify extra day?" , "'Look before you . . . .'" , "Jump suddenly" , "Sudden surge" , "Abrupt change; spring" .)
I believe the answer is:
leap
(Other definitions for leap that I've seen before include "identify extra day?" , "'Look before you . . . .'" , "Jump suddenly" , "Sudden surge" , "Abrupt change; spring" .)