Definition of true friendship

What is a true friend? After much thought and consideration I have arrived at the conclusion that true friendship is an amalgamation of two characteristics: 1) Honesty and 2) Loyalty.
Let's look at at honesty not to be confused with cruelty.
Honesty is the ability to give an opinion about something without judging the person.
Loyalty means being true to something or someone. It's belief in them against all odds. It's faith. The term 'blind faith' comes to mind. True faith is the belief in the unseen. Which, brings me back to loyalty and sticking with someone through thick and thin. Showing up for them like it's a job that you love.