noun
1. usually capitalized L&D : a day set aside for special recognition of the workingman: as
a. : the first Monday in September, observed in the United States and Canada as a legal holiday
b. : May 1 in many countries
2.
[translation of Russian trudoden, from trud labor + den day]
: a Soviet unit of labor crediting a collective-farm worker with more or less than his actual working time according to his skill and productivity