regular
/ˈɹɛɡjʊlə/
A member of the British Army (as opposed to a member of the Territorial Army or Reserve).
A frequent, routine visitor to an establishment.
Bartenders usually know their regulars by name.
A frequent customer, client or business partner.
This gentleman was one of the architect's regulars.
A coffee with one cream and one sugar.
Anything that is normal or standard.
A member of a religious order who has taken the three ordinary vows.
A number for each year, giving, added to the concurrents, the number of the day of the week on which the Paschal full moon falls.
A fixed number for each month serving to ascertain the day of the week, or the age of the moon, on the first day of any month.