1. observed in many countries to celebrate the coming of spring; observed in Russia and related countries in honor of labor; [syn: May Day, First of May, May 1]
WordNet (r) 3.0 (2006):
First of May
n 1: observed in many countries to celebrate the coming of
spring; observed in Russia and related countries in honor
of labor [syn: May Day, First of May, May 1]