0 past simple and past participle of spy --
1 to secretly collect and report information about the activities of another country or organization: --
2 to see or notice someone or something usually when it involves looking hard: --
The subject is specific, in that it is clear that certain citizens are being spied upon, something which we did not know about before.
It is not true to say that they complained of being spied upon, and that they were unwilling to accept this responsibility.
Sometimes they have gained access to a house opposite that in which the woman is living and have spied upon her from there.
For some time she found that she was actually being spied upon in the street.
I was not aware of being spied on.
Inspired by recent evidence and by the patent law, we assume that only vertical innovations can be spied, because they are less easily patented than horizontal innovations.
Before moving along that backbone into the library, the vast expanse of its interior is first introduced, spied through a porthole cut in the wooden panelling.
Wells wrote that they then spied an enormous skull of a whale, partially embedded in the shingle and far away from the water's edge.
