Portmanteau
noun /pɔːtˈmantəʊ/ — A word that blends the sounds and meanings of two others.
Definition
A word blending the sounds and combining the meanings of two others — coined by Lewis Carroll and later systematized by linguists; also a large leather travelling case opening into two equal parts.
Beyond the definition
The portmanteau word is the linguistic gesture of compression — smashing two concepts together until they merge into something new. Brunch, blog, smog, Brexit — each collapses two ideas into a single syllable. The method is productive because the world keeps producing situations that sit between existing concepts.
Origin & history
From French portemanteau (a case for carrying a mantle), from porter (to carry) + manteau (cloak). Lewis Carroll used the word for his invented words in Through the Looking-Glass (1871): slithy = lithe + slimy.
Example sentences
Illustrative sentences for learning, not verified community posts or sourced quotations.
Brunch is perhaps the most successful portmanteau in English — two habits collapsed into one word.
She had a gift for portmanteau thinking — seeing where two ideas touched and naming the conjunction.
Portmanteau words often outlast the cultural moments that produced them.
How to use it
This entry uses a noun. Follow the examples for articles and singular or plural forms; not every noun takes “a” or “an.”
Choose “Portmanteau” when the meaning fits your context: A word blending the sounds and combining the meanings of two others — coined by Lewis Carroll and later systematized by linguists; also a large leather travelling case opening into two equal parts.
Synonyms
blend word, fusion word, compound
Related words
Word in the Wild
See how this word appears in life, language and stories.
Illustrative sentences and imagined stories for learning — not verified sightings, interviews, or sourced quotations.
Fictional scene
Building Model Bridge Together

Three adults work together to build a bridge, interlocking transparent and wooden pieces into one, single supported structure.
The interlocking structure is an analogy for a portmanteau. By combining two distinct materials into one unified object, the bridge blends the visual features and meanings of the separate parts, just as a word combines the components of two others.
Image credit: Wordspun · AI-generated conceptual illustration
Questions about this word
What does "Portmanteau" mean?
Portmanteau is noun meaning: A word that blends the sounds and meanings of two others.. A word blending the sounds and combining the meanings of two others — coined by Lewis Carroll and later systematized by linguists; also a large leather travelling case opening into two equal parts.
Where does the word "Portmanteau" come from?
From French portemanteau (a case for carrying a mantle), from porter (to carry) + manteau (cloak). Lewis Carroll used the word for his invented words in Through the Looking-Glass (1871): slithy = lithe + slimy.