FIFO

F4I1F4O1
UK/ˈfaɪfəʊ/US/ˈfaɪ.foʊ/

A form of first in first out — A method of inventory accounting that values items withdrawn from inventory at the cost of the oldest item assumed to remain in inventory.

Similar
first in first out
Less commonScrabble 10
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Meanings

nounFIFO (countable and uncountable, plural FIFOs)

plural FIFOs

  1. abbreviationacronymcountableuncountableoperationsaccountingAcronym of first in first out.
  2. abbreviationacronymcountableuncountableAcronym of fly-in fly-out.
phrase
  1. abbreviationacronyminformalAcronym of fit in or fuck off, a warning to obey societal or institutional norms, or be expelled.

Synonyms & antonyms

nouninventory accounting in which the oldest items (those first acquired) are assumed to be the first sold

Similar
first in first out
Broader
inventory accounting
Also see
first in first out

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

FIFO. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/FIFO

MLA

“FIFO.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/FIFO. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “FIFO,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/FIFO.

Source: FIFO on Wiktionary, CC BY-SA 4.0.