Clue: It's subject to gravity

Answer: MASS

Length: 4

---

Similar Clues:

• First name of Toland's subject (ADOLF with 5 letters)
• Touchy subject, for some (AGE with 3 letters)
• Touchy subject, to some (AGE with 3 letters)
• Touchy subject, to some people (AGE with 3 letters)
• Touchy subject for Benny (AGE with 3 letters)
• Increasingly touchy subject, as it increases (AGE with 3 letters)
• Italian ballad subject (AMOR with 4 letters)
• Apt subject for today that's hidden in this puzzle's four longest answers (AMOR with 4 letters)
• Subject of some Italian songs (AMORE with 5 letters)
• Subject for an Italian aria (AMORE with 5 letters)