What does topcoat mean?
A topcoat is most commonly an outer garment worn over other clothes, such as a formal coat or a practical coat for cold or wet weather. The word can also denote the final layer of paint, varnish, or another protective finish applied to a surface. In the second meaning, a topcoat is the visible finishing stage after preparation and earlier coats have been applied. As a verb, topcoat means to put such a finishing layer onto an object, as in applying a clear coat to furniture or a vehicle. The term is used in both British and American English and has no strongly marked register. Its usefulness lies in neatly distinguishing both an outermost garment and an outermost layer of coating, while its additional verb form makes it convenient in technical and DIY instructions.
An outer garment worn over other clothes, or a final layer of paint, varnish, or similar coating.
"The furniture received a protective topcoat after the paint had dried."
The clothing sense is the dominant everyday use; the coating sense is especially common in technical, DIY, and automotive contexts.
To apply a final layer of paint, varnish, or another coating to a surface.
"We sanded the table, then topcoated it with a clear satin finish."
This use is chiefly associated with finishing and protective coatings rather than clothing.
The regular plural is used for multiple garments or separate layers of coating.
"The painter applied two thin topcoats to the wooden cabinet."
One word can cover both your shoulders and the last coat of paint: a topcoat is either an outer garment or the finishing layer on a surface.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Words that share this root
Related word forms
How topcoat is actually used
The word is neutral in British and American English. Its clothing sense is general, while the paint and varnish sense is especially common in woodworking, automotive, and DIY contexts; as a verb, topcoat is chiefly used for applying a finishing layer.
Easily confused with topcoat
A topcoat is an outer garment or the final layer of a coating, whereas an overcoat is specifically a coat worn over other clothing and is often longer or heavier.