labour

noun

1
a political party formed in Great Britain in 1900; characterized by the promotion of labor's interests and formerly the socialization of key industries
his labor did not require a great deal of skill
2
productive work (especially physical work done for wages)
his labor did not require a great deal of skill
3
a social class comprising those who do manual labor or work for wages
there is a shortage of skilled labor in this field
4
concluding state of pregnancy; from the onset of contractions to the birth of a child
she was in labor for six hours

1
undergo the efforts of childbirth
2
strive and make an effort to reach a goal
She tugged for years to make a decent living
We have to push a little to make the deadline!
3
work hard
She was digging away at her math homework
Lexicographers drudge all day long

Also useful for “labour”:Unscrambler— Rearrange the letters in “labour”