a given

a given

Something that can be assumed or relied upon. My vote isn't a given, you know—you still need to prove to me that you can handle this job.
See also: given

given

1. Designated. If you're not here at the given time tomorrow, the bus is going to leave without you!
2. Considering. Given the rainy weather, we had to cancel the picnic.
Farlex Dictionary of Idioms.
See also:
  • given
  • half a chance
  • given to
  • given to (something)
  • given to doing
  • be given to (something)
  • be given to something/to doing something
  • be given the hook
  • be given the gate
  • I've seen worse
References in classic literature
In America, and (as I hear) on the continent of Europe also, when your host invites you to dine at a given hour, you pay him the compliment of arriving punctually at his house.
The Two Destinies
The IRS noted that authorities such as those cited above generally apply federal income tax principles to determine a single character for a given transaction.
Guidance on characterizing gross receipts from telecommunications services
For many (including me) who as baseball fans came of age after the American League had adopted the "designated pinch-hitter" for the 1973 season, the DH is a given, but it should be remembered that the introduction of the DH represented a drastic rules change.
Herb Washington's value to the 1974 A's
It is clear from the data that some companies are more productive than others, and generate higher revenue growth from a given level of resources.
The importance of organizational infrastructure (OI). (Intangibles)
The statistics of the results confimed the spooky behavior of photons--forcing one into a given state forces the other (SN: 1/11/86, p.28).
Quantum baseball: a baseball analogy illuminates a paradox of quantum mechanics
Moreover, the client should understand that the advice given reflects professional judgment based on a given situation and the stated or assumed facts.
A tax practitioner's guide to risk management