noun
conical roof; peaked roof; pointed roof; spire
Refers to a roof that comes to a sharp point, like a cone or pyramid. Often used for fairy-tale castles, towers, or whimsical architecture.
あの教会のとんがり屋根は遠くからでもよく見える。
The pointed roof of that church is visible even from a distance.
おとぎ話に出てくるお城には、よくとんがり屋根がある。
Castles in fairy tales often have conical roofs.
Compound of とんがり (pointed, from the mimetic adverb とんがる) and 屋根 (roof). The exact derivation of とんがり is uncertain, but it is likely sound-symbolic.