portmanteau has definitions from the fields of transportation,linguistics
1
[ noun ] (linguistics) a new word formed by joining two others and combining their meanings

Examples

"`smog' is a blend of `smoke' and `fog'" "`motel' is a portmanteau word made by combining `motor' and `hotel'" "`brunch' is a well-known portmanteau"

2
[ noun ] (transportation) a large travelling bag made of stiff leather

Related terms

bag

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