The Prefix ad-

Word List
acclaim
accomplish
adhere
adopt
affixed
aggravate
allocated
allure
annotated
appraise
approximate
assortment
Key Concepts

  • The prefix ad- means “to” or “toward.”
    • ad + join = adjoin
  • Sometimes this prefix changes to make words easier to pronounce. You might see the same ad prefix spelled ac, af, ag, al, an, ap, as, or at.
  • This change may create words with double consonants, as noted in the word list above.