Definition of "Tug" :

noun: a sudden abrupt pull

noun: a powerful small boat designed to pull or push larger ships

verb: struggle in opposition

"She tugged and wrestled with her conflicts."

verb: pull hard

"The prisoner tugged at the chains."

verb: pull or strain hard at

"Each oar was tugged by several men."

verb: move by pulling hard

"The horse finally tugged the cart out of the mud."

verb: carry with difficulty

verb: tow (a vessel) with a tug

"The tugboat tugged the freighter into the harbor."

verb: strive and make an effort to reach a goal

"She tugged for years to make a decent living."