first in first out

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first in first out

noun first-in-first-out · first-in first-out · first in, first out · first-in, first-out

  1. uncountable A method of inventory accounting that values items withdrawn from inventory at the cost of the oldest item assumed to remain in inventory.
  2. uncountable A policy of assigning priority to tasks and assignments that have arrived for service first. To the onlooker, and particularly to those whose memories go back to pre-grouping days, the modern cavalcade of "V2s" and "B1s" is apt to become a little monotonous; but to any running man the general utility characteristics of these two classes are a perfect godsend at times of exceptional pressure
  3. uncountable A type of queue data structure in which the oldest added items are retrieved first.

    Similar: FIFO

Translations

Every language

noun method and policy

한국어선입선출 seonipseonchul
中文先進先出 /先进先出 xiān jìn xiān chū
Deutschder Reihe nach

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MLA

"first in first out." Wiktionary, via Micwyn, micwyn.com/word/first%20in%20first%20out. Accessed 6 Nov. 2026.

APA

first in first out. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/first%20in%20first%20out

Chicago

"first in first out." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/first%20in%20first%20out.

BibTeX
@misc{first_in_first_out_2026,
  title = {first in first out},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/first%20in%20first%20out},
  urldate = {2026-11-06}
}