Synonyms for Mood (same or very similar meaning)
WordNet sense 1 (the prevailing psychological state):
climate
WordNet sense 2 (verb inflections that express how the action or state is conceived by the speaker):
mode, modality
WordNet sense 3 (a characteristic (habitual or relatively temporary) state of feeling):
humor, temper, humour
From the ODE community, based on WordNet
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