1. (

• tug ,
• labor ,
• labour ,
• push ,
• drive

) 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!"; "She is driving away at her doctoral thesis" ;

2. (

• labor ,
• labour ,
• toil ,
• fag ,
• travail ,
• grind ,
• drudge ,
• dig ,
• moil

) work hard; "She was digging away at her math homework"; "Lexicographers drudge all day long" ;

3. (

• labor ,
• labour

) undergo the efforts of childbirth ;