To work hard or exert oneself physically or mentally. The workers labored tirelessly to complete the project on time.
To move or proceed with difficulty or effort. The ship labored through the rough seas during the storm.
To undergo the process of childbirth. She labored for several hours before giving birth to a healthy baby.
To dwell on or emphasize (a point) at unnecessary length. The speaker labored the details until the audience grew impatient.