Definition

1. Adverb:
   • Used to introduce an additional, often more significant, point that strengthens a previous statement: This phrase functions as an adverbial connector to add extra information, usually something obvious or impactful, to what has just been said. It emphasizes that the added point is true without even needing to be discussed.

Usage

• The phrase "not to mention" is used to append a related and frequently stronger point to a statement. It signals that the added item is so evident or important that it almost goes without saying, thereby reinforcing the original argument or claim.
• It is typically placed before the additional element and is followed by a noun, noun phrase, or gerund.

Examples

• Adverb:
  • The city has excellent museums and parks, not to mention its world-class restaurants.
  • It was a very expensive car, not to mention the cost of insurance and maintenance.
  • He's a talented writer, not to mention being a great public speaker.

Advanced Usage

• As a rhetorical device: "Not to mention" is often used for rhetorical effect to pile on evidence or reasons, making an argument more persuasive by implying the list of supporting points is long.
  • The proposal is risky, expensive, and poorly researched, not to mention completely unethical.

Variants and Related Words

• Let alone: A conjunction used to indicate that something is far less likely or possible than something else already mentioned. It often follows a negative statement.
  • I can't afford a bike, let alone a car.
• To say nothing of: A more formal phrase with a similar function to "not to mention."
  • The journey was dangerous, to say nothing of the extreme weather conditions.

Synonyms

• Besides
• In addition to
• As well as
• Furthermore

Related Phrases

• Much less: Similar to "let alone," used after a negative to add a stronger, less likely item for emphasis.
  • I don't have time to call her, much less visit her this week.

Adverb

1. much less
   • she can't boil potatoes, let alone cook a meal