I came upon this topic in a conversation with Hyunwoo for some reason and thought it would be………a bit interesting to list the greek alphabets and their common usages. So here’s your list of letters and usages. <NOTE: There are definitely more usages for these alphabets. I will just be mentioning few real common ones.>

**Αα (Alpha)**

One root of a quadratic equation (with β being the other), α-helix protein structure, α particle (He2+), angular acceleration, the linear thermal expansion coefficient, Thermal diffusivity, alpha carbon (First carbon in an organic molecule).

**Ββ (Beta)**

one root of a quadratic equation, β- particle (electron), β+ particle (positron), sound intensity, velocity/speed of light, elliptic latitude.

**Γγ (Gamma)**

Euler-Mascheroni constant, gamma rays, photon, specific weight, Lorentz factor

**Δδ (Delta)**

Change, distance to Earth, Heat, partial charge

**Εε (Epsilon)**

Axial tilt of Earth, an empty string, emissivity of a blackbody radiation, dielectric permittivity, Small positive quantity

**Ϝϝ (Digamma)**

Don’t know any

**Ζζ (Zeta)**

relative vertical vorticity, damping ratio, Reimman Zeta Function, coefficient of viscous friction

**Ηη (Eta)**

absolute vertical vorticity, index of refraction, viscosity, efficiency

**Θθ (Theta)**

Angle, potential temperature,

**Ιι (Iota)**

Donno man

**Κκ (Kappa)**

Kappa Graph, dielectric constant, thermal conductivity, spring constant, heat capacity ratio

**Λλ (Lambda)**

The Cosmological Constant, wavelength, latent heat of fusion, linear density, elliptical longitude

**Μμ (Mu)**

Coefficient of friction, muon, micro (10^{-6}), chemical potential

**Νν (Nu)**

Frequency, neutrino, Stoichiometric coefficient

**Ξξ (Xi)**

?

**Οο (Omicron)**

?!

**Ππ (Pi)**

Archimedes’ constant, type of covalent bond, pion,

**Ρρ (Rho)**

Density, resistivity, momentum

**Σσ (Sigma)**

Sum, uncertainty

**Ττ (Tau)**

Torque

**Υυ (Upsilon)**

**Φφ (Phi)**

Magnetic Flux, Work Function, electric potential, golden ratio

**Χχ (Chi)**

Electronegativity

**Ψψ (Psi)**

?

**Ωω (Omega)**

Resistance, angular velocity

Sighhh that was long. This showed me how much the Greek alphabet is being used in everyday life. By going through each one of the alphabets I knew, I was both able to organize my mind and see for myself how much it was being used.

Try adding your own usages of these symbols!