Sentence:  He <WSD>winked</WSD> at me. She <WSD>winked</WSD> her eye. He <WSD>winked</WSD> his assent. 
Meaning of the word marked with <WSD> tags:  To blink with only one eye as a message, signal, or suggestion, usually with an implication of conspiracy. (When transitive, the object may be the eye being winked, or the message being conveyed.)