"Hark" has two main meanings:
- It is an old-fashioned or literary verb meaning "to listen carefully" or "pay attention," often used as a command such as "Hark! I hear a sound".
- It can also mean "to return to or remember something from the past," as in the phrase "hark back to," which means to refer to or resemble something from earlier times.
Additionally, "HARK" is the name of an open-source robot audition software used for sound source localization, separation, and speech recognition in robotics.
So depending on context, "hark" could mean to listen attentively, to recall or revert to something past, or be a proper noun for the robot audition system.
