Sentence:  Only paved alleyways tunneled through the walls of those fortresses into the mysterious core of intimacy behind the houses where backyards owned no fences , where one man 's property blended with the next to form courtyards in which no one <WSD>knew</WSD> privacy . 
Meaning of the word marked with <WSD> tags:  have firsthand knowledge of states, situations, emotions, or sensations