1.a sudden abrupt pull
2.a powerful small boat designed to pull or push larger ships
1.pull hard;
The prisoner tugged at the chains
2.strive and make an effort to reach a goal;
She tugged for years to make a decent living
3.tow (a vessel) with a tug;
The tugboat tugged the freighter into the harbor
4.carry with difficulty;
You'll have to lug this suitcase
5.move by pulling hard;
The horse finally tugged the cart out of the mud
6.pull or strain hard at;
Each oar was tugged by several men
7.struggle in opposition;
She tugged and wrestled with her conflicts