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first in first out. In DICTIOUS you will not only get to know all the dictionary meanings for the word
first in first out, but we will also tell you about its etymology, its characteristics and you will know how to say
first in first out in singular and plural. Everything you need to know about the word
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English
Noun
first in first out (uncountable)
- (accounting) A method of inventory accounting that values items withdrawn from inventory at the cost of the oldest item assumed to remain in inventory.
- (operations) A policy of serving first what has arrived for service first.
1949 November and December, O. S. Nock, “Twenty-Four Hours at York—2”, in Railway Magazine, pages 357–358: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, when it is often a case of "first in—first out" with locomotive allocations at sheds.
- (computing) A type of queue data structure in which the oldest added items are retrieved first.
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