pantile

As a preposition under

is under.

As a noun pantile is

a type of interlocking roof tile with a rounded under and over, giving it an elongated s shape.

As a verb rounded

is (round).

As an adjective rounded

is made into a circle or sphere.

As a noun pantile is

a type of interlocking roof tile with a rounded under and over, giving it an elongated s shape.

As nouns the difference between tile and pantile

is that tile is a regularly-shaped slab of clay or other material, affixed to cover or decorate a surface, as in a roof-tile, glazed tile, stove tile, carpet tile etc while pantile is a type of interlocking roof tile with a rounded under and over, giving it an elongated s shape.

As a verb tile

is to cover with tiles or tile can be to protect from the intrusion of the uninitiated.

As a proper noun roof

is (astronomy) a chinese constellation located near aquarius and pegasus, one of the 28 lunar mansions and part of the larger black turtle.

As a noun pantile is

a type of interlocking roof tile with a rounded under and over, giving it an elongated s shape.

As nouns the difference between interlock and pantile

is that interlock is a safety device that prevents activation in unsafe conditions while pantile is a type of interlocking roof tile with a rounded under and over, giving it an elongated s shape.

As a verb interlock

is to fit together securely.