Look upyn,YN,yN,yn-, orŷn in Wiktionary, the free dictionary.

Yn is a letter of the old Romanian Cyrillic alphabet.

YN orYn may also refer to:

• Yn (Georgian letter), an additional letter of the Georgian alphabet
• Yeoman (United States Navy), a rank
• A US Navy hull classification symbol:Yard net tender (YN)
• Yoctonewton, a unit of force equal to 10⁻²⁴ newtons
• Yottanewton, a unit of force equal to 10²⁴ newtons
• Triple bond, in a chemical compound
• 2C-YN, an analogue of the phenethylamine derived hallucinogen 2C-E
• Yes–no question
• Yunnan, a province of China (Guobiao abbreviation YN)
• Y/N, a 2023 novel by Esther Yi
• Yttrium nitride
• Your name, an abbreviation used inself-insert fan fiction

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