ATP

See also: atp, atp., and ATp

English

Proper noun

ATP

1. (tennis) Initialism of Association of Tennis Professionals: the governing body of men's professional tennis, formed in 1972.

   Coordinate terms: WTA (“Women's Tennis Association”), ITF (“International Tennis Federation”)

   • 2022 February 23, Matias Grez, “Alexander Zverev is withdrawn from Mexican Open after striking umpire’s chair multiple times”, in CNN‎^[1], Atlanta, Ga.: Warner Bros. Discovery, archived from the original on 28 February 2026:

     The ATP rulebook defines unsportsmanlike conduct as “any misconduct by a player that is clearly abusive or detrimental to the success of a tournament, ATP and/or the sport” and carries a fine of up to $20,000.

2. (transport, international law) The Agreement on the International Carriage of Perishable Foodstuffs and on the Special Equipment to be used for such Carriage (ATP).

Noun

ATP (countable and uncountable, plural ATPs)

1. (biochemistry) Initialism of adenosine triphosphate.

   Coordinate terms: ADP (“adenosine diphosphate”), AMP (“adenosine monophosphate”)

2. (law, project management) Initialism of authorization to proceed.
   • 1999 March 29, “Pinochet lawyers to challenge extradition ruling”, in Alan Rusbridger, editor, The Guardian‎^[2], London: Guardian News & Media, →ISSN, →OCLC, archived from the original on 23 October 2026:

     Mr Sumption said: "The object would be to enable the Secretary of State to reconsider the decision, not simply so as to consider the reduction in the scope of the extradition proceedings which arises from the decision of the House of Lords, but to consider whether, in the light of that reduction, it would be right to issue an ATP (authorisation to proceed) at all."

3. (finance) Initialism of average transaction price.
   • 2020 August 4, Paul A. Eisenstein, “Consumers shopping for a new car are still wary, adding to problems for automakers”, in NBC News‎^[3], archived from the original on 28 August 2025:

     Industry planners and analysts are closely parsing July’s numbers to try to divine what’s ahead for the industry. One worrisome sign was the decline in the average transaction price, or ATP, paid by the typical buyer in July.

4. (rail transport) Initialism of automatic train protection.

   Coordinate terms: ATC (“automatic train control”), ATO (“automatic train operation”), ATS (“automatic train stop”)

5. (aviation) Initialism of airline transport pilot.

Derived terms

• ATPase
• ATPergic
• ATP synthase

Prepositional phrase

ATP

1. (Internet slang, text messaging) Initialism of at this point.

   Alternative form: atp

Anagrams

• tPA, Apt, APT, pat, pta., PTA, apt., ap't, TPA, apt, tap, PAT, TAP, Pat

Finnish

Etymology

Borrowed from English ATP

Proper noun

ATP

1. (sports) Association of Tennis Professionals

Usage notes

• It may be used to form hyphenated compound terms, such as ATP-pelaaja, ATP-kiertue.

Galician

Noun

ATP m

1. (biochemistry) initialism of adenosín trifosfato (“ATP”)