Another definition of acceptance has to do with positive welcome and belonging; favor and endorsement. For instance, a person could like someone and have acceptance for them due to their approval of that person.
The third description of acceptance is that it can be an act of believing or assenting.
Acceptance – "An express act or implication by conduct that manifests assent to the terms of an offer in a manner invited or required by the offer so that a binding contract is formed. The exercise of power conferred by an offer by performance of some act. The act of a person to whom something is offered of tendered by another, whereby the offered demonstrates through an act invited by the offer an intention of retaining the subject of the offer." (Chirelstein, 2001)