This is the 283rd most frequent Hebrew word.
לעבוד
To work; to serve.
Here, 'לעבוד' refers to performing occupational tasks.
אני אוהב לעבוד במשרד בבקרים.
I enjoy working in the office in the mornings.
In this context, 'לעבוד' refers to a machine functioning or operating.
המכונה חייבת לעבוד בלי להפסיק.
The machine must operate without stopping.
This usage of 'לעבוד' describes making an effort or laboring towards a goal.