The acrobatic feat of walking on a tightrope.

An acrobat who practices tightrope walking.

present participle of tighten

The act or process of making more tight.

A tightly stretched rope or cable on which acrobats perform high above the ground. / (figuratively) a difficult or desperate situation.

(figuratively) To undertake a precarious course of action.

(rugby) prop who plays on the right-hand side of the front row of the scrum, such that in a scrum, their head is tightly bound between those of the opposing hooker and loosehead

(slang, mildly vulgar) Someone who does not know how to have fun, or who is so worried about insignificant things as to ruin any fun that anyone around them may be having.

In a tight manner. / (of speech) Curtly in a way that suggests anger or other intense emotion is being contained.

Able to be tightened.