4-F

noun
\ ˈfȯr-ˈef How to pronounce 4-F (audio) \

Definition of 4-F

: classification as unfit for military service also : a person having this classification

First Known Use of 4-F

1942, in the meaning defined above

Keep scrolling for more

Learn More about 4-F

Dictionary Entries near 4-F

3-D printing

401(k)

411

4-F

4-H

4WD

4x4

Statistics for 4-F

Look-up Popularity

Time Traveler for 4-F

The first known use of 4-F was in 1942

See more words from the same year

Comments on 4-F

What made you want to look up 4-F? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

food or victuals

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!