Yn.

Yn is a letter of the old Romanian Cyrillic alphabet. YN or Yn may also refer to: *

Yeoman (United States Navy) The yeoman rate is one of the oldest rates in the U.S. Navy, dating back to 1794. Historically, the Navy yeomen were responsible for keeping the storerooms for the ship's gunners, carpenters and boatswains. With the transition from sail to steam, ...

, a rank *

Yoctonewton The newton (symbol: N) is the unit of force in the International System of Units (SI). It is defined as 1 kg⋅m/s, the force which gives a mass of 1 kilogram an acceleration of 1 metre per second per second. It is named after Isaac Newton in ...

, a unit of force equal to 10⁻²⁴ newtons *

Yottanewton The newton (symbol: N) is the unit of force in the International System of Units (SI). It is defined as 1 kg⋅m/s, the force which gives a mass of 1 kilogram an acceleration of 1 metre per second per second. It is named after Isaac Newton in ...

, a unit of force equal to 10²⁴ newtons *

Triple bond A triple bond in chemistry is a chemical bond between two atoms involving six bonding electrons instead of the usual two in a covalent single bond. Triple bonds are stronger than the equivalent single bonds or double bonds, with a bond orde ...

, in a chemical compound *

2C-YN 2C-YN is an analog of phenethylamine that can be synthesized from 2C-I. Very little data exists about the pharmacological properties, metabolism, and toxicity of 2C-YN, although Daniel Trachsel lists it as having a dosage of around 50mg and a du ...

, an analogue of the phenethylamine derived hallucinogen 2C-E *

Yes–no question In linguistics, a yes–no question, also known as a binary question, a polar question, or a general question is a question whose expected answer is one of two choices, one that provides an affirmative answer to the question versus one that provi ...

Yunnan Yunnan , () is a landlocked province in the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is Kunming. The province borders the ...

, a province of China (Guobiao abbreviation YN) {{disambiguation