What's the noun for tent? Here's the word you're looking for.
tent
A pavilion or portable lodge consisting of skins, canvas, or some strong cloth, stretched and sustained by poles, used for sheltering people from the weather.
(archaic) The representation of a tent used as a bearing.
(Scotland) A portable pulpit set up outside to accommodate worshippers who cannot fit into a church.
“The tentpole movie is an attraction popular and exploitable enough to prop up the entire moviegoing tent for several weeks or even months.”
“United Artists hasn't prospered in recent years, so a box office hit from its tentpole movie franchise is essential.”
“Just coincidentally, it also provides the opportunity for the sorts of extravagant computerized effects that create tentpole movie attractions these days.”
tent
(medicine) A roll of lint or linen, or a conical or cylindrical piece of sponge or other absorbent, used chiefly to dilate a natural canal, to keep open the orifice of a wound, or to absorb discharges.