Let's study together Compounding (or Compound Word Formation) Long, academic-style explanation: Compounding is a word-formation process in which two or more independent words are combined to create a single new word with its own meaning. Examples: scare crow → scarecrow tooth brush → toothbrush class room → classroom sun light → sunlight Types of compound words: Closed compounds: written as one word (scarecrow, notebook) Open compounds: written as two words (post office, swimming pool) Hyphenate