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Synonyms for Pretence (same or very similar meaning)

WordNet sense 1 (pretending with intention to deceive):
feigning, pretense, dissembling

WordNet sense 2 (imaginative intellectual play):

WordNet sense 3 (a false or unsupportable quality):

WordNet sense 4 (an artful or simulated semblance):
guise, pretext

WordNet sense 5 (the act of giving a false appearance):
simulation, pretending

From the ODE community, based on WordNetadd/edit