Definition

1. Verb (transitive):

   • To take revenge on someone or get even with them: To inflict harm or unpleasant consequences on someone in return for harm they caused.
   • To return money that was borrowed: To repay a debt or loan.

2. Verb (intransitive):

   • To act as a form of recompense or reward: To serve as a fitting return for someone's actions, often positive.

Usage and Examples

• Verb (Transitive - Revenge):

  • He vowed to pay back his enemies for their betrayal.
  • She found a way to pay him back for the embarrassing prank.

• Verb (Transitive - Repayment):

  • I need to pay back the loan by the end of the month.
  • He promised to pay back every cent he borrowed.

• Verb (Intransitive - Recompense):

  • Her kindness paid back when she needed help the most.
  • His loyalty paid back in the form of a promotion.

Advanced Usage and Nuances

• The phrase often implies a sense of settling a score, whether financial or moral. The context (positive or negative) is crucial for interpretation.
• When used in the sense of revenge, it can have a slightly informal or intense connotation.

Variants and Related Words

• Repay (verb): A more formal synonym, primarily for returning money but can also mean to reciprocate a favor or wrong.
• Retaliate (verb): Specifically means to make an attack or assault in return for a similar attack. More focused on revenge than "pay back."
• Reimburse (verb): To pay back money spent, typically for expenses.
• Settle a debt (phrase): To pay back money owed.

Synonyms

• Get even with: (Informal) To take revenge.
• Return: To give back (often used for money or items).
• Reciprocate: To respond to an action by making a corresponding one.
• Requite: (Formal/Literary) To make appropriate return for (a favor, injury, etc.).

Phrasal Verbs and Constructions

• Pay someone back for something: This is the standard construction.
  • I will pay you back for the money on Friday. (Financial)
  • I'll pay you back for this insult! (Revenge)

Related Idioms

• Pay back in kind: To respond to an action with a similar action.
  • If they attack us, we will pay them back in kind.
• Pay back with interest: To return more than was given, literally (more money) or figuratively (stronger revenge).
  • He not only repaid the loan but paid it back with interest.
  • Her betrayal was paid back with interest when he exposed her secrets.

Verb

1. take vengeance on or get even
   • We'll get them!
   • That'll fix him good!
   • This time I got him
2. act or give recompense in recognition of someone's behavior or actions