definition of
tug

[1] #1 tug v. pull hard; "The prisoner tugged at the chains"; "This movie tugs at the heart strings". wn

[2] #2 tug n. [jerk] a sudden abrupt pull. wn

[3] #3 tug n. [tugboat, towboat, tower] a powerful small boat designed to pull or push larger ships. wn

[4] #4 tug v. [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". wn

[5] #5 tug v. tow (a vessel) with a tug; "The tugboat tugged the freighter into the harbor". wn