labor day

noun

1. (in the U.S.) a legal holiday, commonly the first Monday in September, in honor of labor.

noun

1. (in the US and Canada) a public holiday in honour of labour, held on the first Monday in September
2. (in Australia) a public holiday observed on different days in different states

A national holiday in the United States and Canada in honor of working people. Labor Day is observed on the first Monday in September.