In a real application meaningful names are nearly always possible, eg:
const pi = 3.1415926
const 2pi = 2 * pi
const circumference = 2pi * radius const pi = 3.1415926
const 2pi = 2 * pi
const circumference = 2pi * radiusWhat about something like `gamma`? Lorentz factor? Luminance multiplier? Factorial generalization?
Why not just use the full sentence rather than assign it to an arbitrary name/symbol `gamma` and leave it dependent on the context?
And it's not that hard to add an inline comment to dispel the confusion
const tau = 2*pi; // Alternate name for 2pi is "tau"