How birthdays are celebrated (6)

I believe the answer is:

yearly

(Other definitions for yearly that I've seen before include "Every tenth of a decade" , "Per annum" , "A hundred times a century" , "like circulation of the Sun?" , "in each revolution?" .)

I've seen this clue in The Wall Street Journal.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.