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”