1. an expresion of gratitude used primarily as a formal, friendly, social obligation
2.When used in it's true form
(not merely out of obligation) it is an expresion of respect and appreciation to another soul (and simultaneously to all beings) for the unconditional
kindness that has been bestowed upon you.
1. (delivery person hands man package) man: "Thank you!"
2. (parents tolerate
kid for 20 years
and teach kid how to not be so spoiled and bratty) Kid: "Thank you."