Princeton's WordNet

1. modality, mode(noun)

   a classification of propositions on the basis of whether they claim necessity or possibility or impossibility

   Synonyms:
   mode, manner, musical mode, fashion, way, sensory system, modal value, sense modality, style, modality, mood

2. mood, mode, modality(noun)

   verb inflections that express how the action or state is conceived by the speaker

   Synonyms:
   temper, sensory system, manner, musical mode, fashion, mode, way, humour, modality, modal value, sense modality, humor, climate, style, mood

3. modality, sense modality, sensory system(noun)

   a particular sense

   Synonyms:
   modality, mood, sense modality, sensory system, mode

4. modality(noun)

   a method of therapy that involves physical or electrical therapeutic treatment

   Synonyms:
   mood, sense modality, sensory system, mode