Finishing
Sealed wood has a coating that limits absorption through a face or end grain.
End sealer can slow moisture loss and reduce fresh checks. A surface sealer can prepare wood for later finish coats.
The term does not name the product or full finish system. Ask what was applied and where.
More terms
A wood finish is a surface treatment such as oil, wax, lacquer or varnish.
A finished surface has received its final sanding and intended protective treatment.
Rough-sawn wood retains the surface left by the saw and has not been planed smooth.
Flattening removes high areas until one broad face lies in a plane, then brings the other face parallel.