deviation. 1  the act of deviating. 2  departure from a standard or norm. 3  Statistics. the difference between one of a set of values and some fixed value, usually the mean of the set. 4  Navigation. the error of a magnetic compass, as that of a ship, on a given heading as a result of local magnetism. 5  Optics.
The definition of an invitation is a request for a person's attendance at an event. An example of an invitation is a printed card asking family and friends to come to the sender's wedding. 1  an inviting to come somewhere or do something. 2  the message or note used in inviting.  enticement or allurement.
There will be times when you will have to decline an invitation to a special event or party. Following proper etiquette in declining will not only spare feelings, but will also make the task of planning for the occasion a lot easier on the host and/or hostess.t is never too late to respond to an invitation, especially if you are declining. If you respond late, you can apologize.. It is better to call the hosts and explain the reason behind your lack of promptness than not to answer at all. Mail does get lost, life does get in the way, and people do understand that.