Gumboot throwing/tossing
Thanksgiving is an annual celebration that is held on the last Thursday in November every year. Most places of business are closed on this day.
Yearly; every year;
every year that's why its called annual.
There are 30 days in every November.
Annual.
Annual or annually.
Annual.
Every year haha
Quadrennial
tri-annual
Each/every/once a year.
Annual event