1) a short Christian prayer to be said on certain days (collect)

2) a year in which February as 29 days (every fourth year) (leap year)

3) to be allowed to; to have permission to; (used to express possibility); the fifth month of the year, with 31 days (may)

4) any period of seven days (especially seven days from Saturday midnight to Saturday midnight) (week)

5) the time taken by the Earth to go round the Sun, about 365.25 days; (also called the 'calendar year') the period from 1 January to 31 December; any period of 365 consecutive days (year)