IPA: /ˈtaɪtˌwaɪər/
KK: /taɪtˌwaɪər/
A type of rope or wire that is stretched tightly, often used in performances where someone walks across it high above the ground.
The performer amazed the audience by walking across the tightwire without any safety equipment.
Tightwire → The word is formed from "tight" (from Old English *tihht*, meaning firmly held or secure) and "wire" (from Old English *wir*, meaning a slender, flexible strand of metal). The term "tightwire" refers to a wire that is firmly held or stretched tight, often used in the context of tightrope walking.
Think of something that is 'firmly held' ('tight') and a 'slender strand' ('wire') — together, they create the idea of a tightwire, which is a wire stretched tightly.
No commonly confused words.