Definitions of accent:

• noun:   a diacritical mark used to indicate stress or placed above a vowel to indicate a special pronunciation
• noun:   distinctive manner of oral expression

  Example: "He couldn't suppress his contemptuous accent"

• noun:   special importance or significance

  Example: "The room was decorated in shades of gray with distinctive red accents"

• noun:   the relative prominence of a syllable or musical note (especially with regard to stress or pitch)
• noun:   the usage or vocabulary that is characteristic of a specific group of people

  Example: "He has a strong German accent"

• verb:   put stress on; utter with an accent

  Example: "In Farsi, you accent the last syllable of each word"

• verb:   to stress, single out as important