la propina

Propina is a Spanish noun that primarily means "tip" or "gratuity" in English.

Meaning:

• Propina refers to a small sum of money given voluntarily to someone, such as a waiter, bartender, or taxi driver, as a way to thank them for good service.
• In some countries and contexts, propina can also mean a bribe or illicit payment, although this is less common in everyday usage.

Parts of the word:

• The word propina comes from the Latin propinare, which means "to offer or give to drink," and by extension, "to give a gift or tip."

Synonyms:

• Gratificación (gratification)
• Regalo (gift, though less specifically for service)
• Gratuidad (gratuity)
• In slang and some countries, mordida can mean a bribe.

Antonyms:

• There isn't a direct antonym for "propina" in the sense of a tip, but generally, a no tip or no gratuity situation would be the opposite.
• For the meaning of bribe, antonyms could be honest payment or legal transaction.

Usage Examples:

• Le di una propina al mesero porque el servicio fue excelente.
  (I gave the waiter a tip because the service was excellent.)

• La propina que pidieron era claramente un soborno.
  (The tip they asked for was clearly a bribe.)