3J
3J may refer to:
- 3J (Family Matters), a character on Family Matters
- 3j symbol or the Wigner 3-jm symbols, symbols in quantum mechanics
- Zip (airline)'s IATA code
- Jubba Airways's IATA code
- 3J, a type of J-coupling involving 3 bonds in nuclear magnetic resonance
See also
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This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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