The word "tug" is often used to refer to pulling on something with great effort. However, there are several other words that can be used to describe this action. "Drag" refers to pulling something along the ground, while "haul" indicates pulling a heavy load. "Yank" and "wrench" suggest a sudden and forceful pulling motion. "Twitch" and "jerk" can be used to describe quick, sharp tugs. Another synonym for "tug" is "tow," which typically involves pulling a vehicle or vessel with a rope or chain. Regardless of which word is used, they all convey a sense of exertion and effort to move something forward.