A true friend is someone you do not lie to
A friend is someone who’s feelings you consider when deciding on your actions and words
An acquaintance is someone you have met and may meet again in the not so distant future

There’s so much more of course
These definitions cannot be expressed in a sentence alone.

Sometimes a friend can be someone you feel safe with even if you do not know them well, like you and i Fuzzy.
I do not fear judgement, and often receive support from you, and that is enough to consider us friends, even though we have never met.