noun.a word or part of a word made by combining the spellings and meanings of two or more other words or word parts (such as smog from smoke and fog)

• A portmanteau of “costume” and “play,” cosplay by definition is the act of dressing up as a fictional character, with many of the costumes you find inspired by video games, film, or TV.
• When the steamboat bumped against the … pilings, the crowd eased back to allow the hands to erect the gangplank and bear trunks and portmanteaux to the dock for passengers to claim.

noun.a large suitcase

• He bent down and pulled out the heavy portmanteau from under the bed. He opened it and took out a medium-size red bag …

adjective.combining more than one element, use, or quality

• As a book, it is essentially a portmanteau collection of aspects of martial life that caught Holmes's eye during his career.
• The building of the embankment was a portmanteau scheme, defending valuable building land against high tides, providing space for sewers below, and for carriages and pedestrians above.