An athletic meet or sports day (usually at a school), featuring physical contests and events where students and often parents participate.
来週は小学校の運動会で、父母も参加する競技があるらしい。
Next week is the elementary school's sports day; apparently there are events parents can join.
運動会の練習で子どもたちは毎日一生懸命走っている。
Children are practicing hard every day, training for the sports day.
天気が悪くて運動会が延期になった。
The sports day was postponed because of bad weather.