Another word for perceived

I asked her if she perceived any hint of threat.

He didn't have to explain how accusing his opponent would be perceived, especially after their acrimonious debate.

She perceived the difference in size at once.

But by this time Tennyson was writing lyrics of still higher promise, and, as Arthur Hallam early perceived, with an extraordinary earnestness in the worship of beauty.

Boole was one of the most eminent of those who perceived that the symbols of operation could be separated from those of quantity and treated as distinct objects of calculation.