Definition of "topcoat" [top•coat]

• A lightweight overcoat. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "In bed, he delivers his sermon in a whisper, formal like, as if wearing a topcoat."
• "If you're interested in this season's ladylike clothes, try Jil Sander's tie jacket, Miu Miu's glamorous '40s-style topcoat or Thomas Tait's classic car coat."
• "Ideally, one would have a cover-up for every little occasion: a lined barn jacket for Saturday strolls, a tomboy topcoat for business lunches, a fur-trimmed cashmere number for fancy parties, a tomato-red swing coat for cocktails."