Reef and Sill

Reef noun - A submerged ridge of rock or coral near the surface of the water.

Sill and reef are semantically related In some cases you can use "Sill" instead a noun "Reef".

Nearby Words: reefed, reefer, reefy, reefing

Sill noun - Structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure.

Reef and sill are semantically related in shelf topic. Sometimes you can use "Reef" instead a noun "Sill".

Nearby Words: siller, Silling