noun Date: 1958 a holiday observed in parts of the Commonwealth of Nations formerly on May 24 as the anniversary of Queen Victoria's birthday and now on the second Monday in March
COMMONWEALTH DAY
Meaning of COMMONWEALTH DAY in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012