Do you mean the spire?
The possessive form of the singular noun church is church's.example: We took up a collection to repair the church's roof.
The central part of a church is called an altar. This is a sacred part of the church and the place from which the sermons are preached.
A spire is a tall, pointed structure on top of a building, like a church, while a steeple specifically refers to the tall tower or structure on a church roof, often topped with a spire. In essence, all steeples have spires, but not all spires are part of steeples.
A church roof shaped like a boat is typically referred to as a "nave" or "hull" design. This architectural feature is known as a "nave" because it symbolizes the idea of the church as a ship, carrying its congregation through the stormy seas of life towards salvation. The boat shape is believed to have originated from the Biblical story of Noah's Ark, which represents safety and protection from the floodwaters of sin. Additionally, the boat shape allows for better acoustics and natural lighting, enhancing the overall worship experience for the congregation.
Perhaps an isle; or maybe a tunnel (depending where the corridor is, upstairs or downstairs.)
Steeple
peak or ridge or ridge cap
To help the rain water drain off easier.
It was a regular flat roof. Around the edge was a pointy barrier to keep the birds off.
It isn't called anything. It is just called part of the nave.
The "pointy" part is mostly the Republic of South Africa, the southern most part of it being the Cape Of Good Hope and Cape Agullus
A rafter is part of a roof, it supports the roof.
pointy teeth
Immediately inferior to the body. This is the "pointy" part of the sternum.
church roof
The lower part of the roof is called the eaves.
It is the curved/pointy part at the front of the boatfront