\ ˈfȯr-ˈef
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Definition of 4-F
: classification as unfit for military service
also
: a person having this classification
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“4-F.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/4-F. Accessed 8 Apr. 2021.
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Time Traveler for 4-F
The first known use of 4-F was in 1942
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