sill

As nouns the difference between sill and doorstep

is that sill is (also window sill) A horizontal slat which forms the base of a window while doorstep is step of a door. The threshold of a doorway.

As a verb doorstep is

to corner somebody for an unexpected interview.

As nouns the difference between sill and null

is that sill is (architecture) (also window sill ) a horizontal slat which forms the base of a window or sill can be (uk) a young herring or sill can be the shaft or thill of a carriage while null is zero, nil; the cardinal number before einn.

As nouns the difference between valance and sill

is that valance is short curtain that hangs along the top edge of a window while sill is (also window sill) A horizontal slat which forms the base of a window.

In architecture terms the difference between offset and sill

is that offset is a horizontal ledge on the face of a wall, formed by a diminution of its thickness, or by the weathering or upper surface of a part built out from it; a set-off while sill is (also window sill) A horizontal slat which forms the base of a window.

As nouns the difference between offset and sill

is that offset is anything that acts as counterbalance; a compensating equivalent while sill is (also window sill) A horizontal slat which forms the base of a window.

As a verb offset

is to compensate for something.

As nouns the difference between sill and plinth

is that sill is (architecture) (also window sill ) a horizontal slat which forms the base of a window or sill can be (uk) a young herring or sill can be the shaft or thill of a carriage while plinth is a block or slab upon which a column, pedestal, statue or other structure is based.

As a noun sill is

(architecture) (also window sill ) a horizontal slat which forms the base of a window or sill can be (uk) a young herring or sill can be the shaft or thill of a carriage.

Sill is a related term of mantelshelf.

As nouns the difference between sill and mantelshelf

is that sill is (architecture) (also window sill ) a horizontal slat which forms the base of a window or sill can be (uk) a young herring or sill can be the shaft or thill of a carriage while mantelshelf is a shelf above a fireplace.

Projection is a related term of sill.

As nouns the difference between projection and sill

is that projection is something which projects, protrudes, juts out, sticks out, or stands out while sill is (architecture) (also window sill ) a horizontal slat which forms the base of a window or sill can be (uk) a young herring or sill can be the shaft or thill of a carriage.

As nouns the difference between outcropping and sill

is that outcropping is an outcrop while sill is (also window sill) A horizontal slat which forms the base of a window.