has tittered

• present perfect

  present perfect

  Used to describe actions that started in the past and continue into or have direct relevance to the present.

  of titter (3rd person singular).
  titter

  verb (used without object)

  to laugh in a restrained, self-conscious, or affected way, as from nervousness or in ill-suppressed amusement.

More Suggestions

• battered
• multitiered
• scattered
• shattered
• tattered
• face-centered
• open-timbered
• tax-sheltered
• ad litteram