IPA: //pɔːrtˈmæn.təʊ//
KK: /pɔrtˈmænˌtoʊ/
A word that combines the sounds and meanings of two different words, or something that has multiple uses or qualities.
The term 'brunch' is a portmanteau of breakfast and lunch.
A large suitcase that can be opened into two parts, or a word formed by combining parts of two or more words.
She packed her clothes into a portmanteau for the trip.
Portmanteau → It is formed from "porter" (from Old French, meaning to carry) and "manteau" (meaning coat). The word originally referred to a suitcase that could carry multiple items, and it has since evolved to describe a word that blends the sounds and meanings of two words.
Think of a suitcase that 'carries' ('porter') different items, just like a portmanteau word carries meanings from two different words.