The Merriam-Webster dictionary lists "trust" as a belief that someone or something is reliable, good, honest, and effective. They use words like assured reliance on the character and a charge or duty imposed in confidence.
Trust is a big word we far too often toss around like it's part of a sales pitch. Trust me, my friend. It's all about trust. I trust that guy. But what is trust, really?
Trust is the transference of faith and Rachel Botsman examined the trust economy and collaborative consumption in her 2012 TEDTalk which continues to grow.