Flagstone and Sett

Flagstone noun - Stratified stone that splits into pieces suitable as paving stones.

Sett and flagstone are semantically related. in paving slab topic. In some cases you can use "Sett" instead a noun "Flagstone".

Sett noun - Rectangular paving stone with curved top; once used to make roads.

Flagstone and sett are semantically related. You can use "Flagstone" instead a noun "Sett".