Enby - or non-binary - is anything that isn't "just" male or "just" female. Agender is a part of that (meaning having no gender) but it's not the only non-binary gender identity. Others might be something in between or fluctuate between several genders or have a gender that is outside of the male-to-female spectrum. All these genders fall under the umbrella-term "enby" but many people decide to specify further where on the gender landscape they are. That's why you might see someone using for example both enby and agender for themselves.
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0 ups, 2y
Agender is no gender
Enby is a gender that isnt male or female, I like to think of it as colors to make it easier.
Female is pink, male is blue, and enby is yellow