Related Clues:

• What every thing is
• Common subject?
• It's not always proper
• Sir or madam
• Sentence subject, usually
• It may be abstract
• Self-descriptive letters
• Word before a verb, maybe
• 39-Down, e.g.
• This answer is one
• Subject word
• You name it
• E.g., e.g.
• Thing, in English class
• Collective or common thing