Definition

1. Verb (transitive):
   • To remove something by rubbing, wiping, or erasing it, often leaving no trace.
   • To obliterate or eliminate something, as if by erasing it.

Usage

• The primary use of "rub out" is to describe the physical act of removing a mark, writing, or stain by applying friction.
• It can also be used figuratively to mean eliminating or destroying something so it ceases to exist.

Examples

• Literal (Physical Removal):
  • He used an eraser to rub out the pencil marks.
  • The spilled wine was hard to rub out of the white tablecloth.
• Figurative (Elimination):
  • The new policy aims to rub out corruption in the department.
  • Time has rubbed out the details of that memory.

Advanced Usage

• "to rub out a mistake": to correct an error by erasing it.
  • She carefully rubbed out the mistake in her notebook.
• "to rub out all traces": to remove every sign or piece of evidence.
  • The criminals tried to rub out all traces of their presence.

Variants and Related Words

• Eraser (n): A tool, like a piece of rubber, used for rubbing out pencil marks.
• Efface (v): To erase or wipe out; a more formal synonym.
• Expunge (v): To strike or blot out completely; a formal synonym often used in legal or official contexts.
• Obliterate (v): To destroy completely; to wipe out.

Synonyms

• Erase
• Wipe out
• Delete
• Remove
• Expunge
• Efface

Related Phrasal Verbs

• Rub off: To be removed or transferred by rubbing.
  • The gold plating on the ring is starting to rub off.
• Rub away: To remove or wear something down through persistent rubbing.
  • The inscription on the old tombstone has been rubbed away by time.

Related Idioms

• (Slang, dated) "Rub someone out": To murder or kill someone. (Note: This is an informal, potentially offensive slang usage.)
  • In old gangster films, the mob boss would order his enemies to be rubbed out.

Verb

1. remove by or as if by rubbing or erasing
   • Please erase the formula on the blackboard--it is wrong!