The term 'Hark' is a verb that means to pay attention or LISTEN. It can be broken down into four crossword solutions: HEED (4 letters), HEAR (4 letters), LISTEN (6 letters), and PSST (4 letters). HEED is an imperative verb meaning to pay attention to or obey a command. HEAR is a verb meaning to perceive sound. LISTEN is a verb meaning to pay attention to sound. PSST is an interjection used to get someone's attention. All of these words are related to the concept of paying attention or listening.