definition of august
August noun [C or U]. A1 the eighth âmonth of the âyear, after âJuly and before âSeptember: They usually go to âtheir âholiday âhome in August. We're going to âAustralia on 1 August. They got âmarried last August. More examples. 1  My son's â birthday is in August too. 2  August is a â summer â month in the UK.
August is the eighth month of the year in the Julian and Gregorian Calendars and one of seven months with a length of 31 days.