What is the difference between a contraction and a portmanteau?

Contractions and portmanteaus are similar because they’re both formed by combining two words and omitting some letters. However, they’re not interchangeable.

  • Contractions typically combine two words that are often used together (e.g., “have not” becomes “haven’t”). A contraction and its uncontracted form have the exact same meaning.
  • A portmanteau is formed by blending two words together to create a new word with a new meaning. For example, “staycation” is a combination of the verb “stay” and the noun “vacation.” A portmanteau is a type of neologism.