noun (n)

• a classification of propositions on the basis of whether they claim necessity or possibility or impossibility(noun.linkdef)

  Synonym:
  mode
  

  source: wordnet30
• verb inflections that express how the action or state is conceived by the speaker(noun.linkdef)

  Synonym:
  mode, mood
  

  source: wordnet30
• a particular sense(noun.cognition)

  Synonym:
  sense modality, sensory system
  

  source: wordnet30
• a method of therapy that involves physical or electrical therapeutic treatment(noun.act)

  source: wordnet30
• The quality or state of being modal.(noun)

  source: webster1913