Meanings of be duplicity in English

He stifled a yawn, which again I thought to be duplicity.

He had learnt to be wise and cautious; but to be wise and cautious toward a brother would have seemed to him to be duplicity.

If there were duplicity in this, Honora did not recognize it.

If there is one thing that revolts me, it is duplicity.

Yet if there was duplicity in her makeup there were also qualities that attracted devoted friendship.

In them was duplicity, revenge, bigotry, heathenish cruelty; but these were not all the qualities the inventory discovered.

But if there was duplicity at Vienna was there not folly, nay, blindness, in the Cabinet of the Tuileries?

He did not mean to be tricked again, and if there was duplicity in his conduct the English had set the example.

He had made use of no duplicity: if there were duplicity in the case at all, he could not be the author of it.

Whilst her mother and her brother lied with that quiet impudence of the slave, whose sole weapon is duplicity, Gilberte preserved a sullen silence.