labor
US /ˈleɪ.bɚ/
UK /ˈleɪ.bɚ/

1.
2.
the process of childbirth
:
•
She went into labor early in the morning.
•
The doctor said her labor would be long.
1.
work hard; make great effort
:
•
They had to labor for hours to clear the debris.
•
She continued to labor over the difficult math problem.