Open English Wordnet
Nouns
(n)labor, labour, working class, proletariata social class comprising those who do manual labor or work for wages“there is a shortage of skilled labor in this field”
(n)parturiency, labor, labour, confinement, lying-in, travail, childbedconcluding state of pregnancy; from the onset of contractions to the birth of a child“she was in labor for six hours”
(n)labor movement, trade union movement, labor, labouran organized attempt by workers to improve their status by united action (particularly via labor unions) or the leaders of this movement