What does "varying" mean?

A kind of variable, used by a fragment shader, that interpolates values across a primitive, so as to produce gradient effects etc.

What is a synonym for "varying"?

Common synonyms include: varied, arbitrary, assorted, at odds, at variance, capricious.

//ˈvɛəɹiɪŋ// noun, verb

noun, verb ·Moderate ·College level

Noun

1
A kind of variable, used by a fragment shader, that interpolates values across a primitive, so as to produce gradient effects etc.
"Another consideration to the relationship between vertex and fragment shaders is that adding too many additional varyings can be a drag on performance since they must all be interpolated […]"

Verb