Sentence:  Squatting on our haunches beside the flat stone we broke them on , we were safe behind the <WSD>high</WSD> closed gates at the end of the drive : safe from interruption and the observation and possible amusement of the passers-by . 
Meaning of the word marked with <WSD> tags:  (literal meaning) being at or having a relatively great or specific elevation or upward extension (sometimes used in combinations like `knee-high')