• Hard: see hardness.
• Hard is a town in Austria.
• Hard is a level of difficulty

You may also be looking for something of the following:

• A Hard Day's Night (album)
• A Hard Day's Night (movie)
• A Hard Day's Night (song)
• Die Hard
• hard bop
• hard copy
• hardcore
• hard disk
• hard disk recorder
• hard-edge
• hard money
• hard palate
• hard rock
• hard sign
• hardware
• NP-hard
• soft