Definition

1. Adverb:

   • Per annum; by the year; every year: Used to indicate that something, typically a sum of money, is calculated, paid, or received on a yearly basis.

2. Noun:

   • Public address system: An electronic system of microphones, amplifiers, and loudspeakers used to amplify sound so it can be heard by the public in a large area.

Usage Examples

• Adverb:

  • The interest on the loan is charged at 5% p.a. (The interest is calculated and applied each year.)
  • She receives a salary of £50,000 p.a. (Her yearly salary is fifty thousand pounds.)

• Noun:

  • The announcement over the p.a. was difficult to hear. (The message broadcast via the public address system was unclear.)
  • Please connect the microphone to the p.a. for the speech. (Please use the public address system to amplify the speaker's voice.)

Advanced Usage

• In financial contexts: "p.a." is standard in contracts, bank statements, and financial reports to denote annual rates.
  • The certificate of deposit offers a fixed return of 2.3% p.a.
• Specifying frequency: It can clarify that a recurring event or payment happens once per calendar year.
  • The membership fee is $120 p.a.

Variants and Related Words

• Per annum: The full Latin phrase from which "p.a." is abbreviated. It is synonymous with the adverbial use.
• PA system: A common alternative term for the noun, meaning public address system.
• Annual (adj): Occurring once every year.
• Annually (adv): By the year; every year.

Synonyms

• Adverb: Annually, yearly, per year, each year.
• Noun: Public address system, PA system, loudspeaker system, tannoy (UK).

Important Notes

• Context is crucial: The meaning of "p.a." is entirely dependent on context. In financial or formal writing, it almost always means "per annum." In discussions about audio equipment or events, it means "public address."
• Abbreviation: It is primarily a written abbreviation. In speech, the full terms "per annum" or "public address system" are used.
• Punctuation: The periods in "p.a." are often used, but the form "pa" or "PA" (especially for the noun) is also common. "PA" in capital letters frequently denotes the noun.

Adverb

1. by the year; every year (usually with reference to a sum of money paid or received)
   • he earned $100,000 per annum
   • we issue six volumes per annum

Noun

1. an electronic amplification system used as a communication system in public areas