What is the difference between a compound word and a portmanteau?

Compound words and portmanteaus can be easily confused because they both combine multiple words into one. However there is a difference between them.

  • In compound words, both words remain intact when joined together into a single unit (e.g., basket + ball = basketball).
  • In portmanteau words, on the other hand, some of the letters are removed (e.g., flexible + vegetarian = flexitarian).