Noun
trahison (uncountable)
(rare) Treason.
When André Masson began to talk about "la trahison des gaullistes" (the Gaullist treason), Mitterrand stood up in the audience and shouted him down, saying Masson had no right to talk on behalf of POWs and calling "la relève" a "con" (i. Source: Internet
The use of objects as other than what they seem is typified in his painting, The Treachery of Images (La trahison des images), which shows a pipe that looks as though it is a model for a tobacco store advertisement. Source: Internet