Rapture" is derived from the Latin verb: 'rapere', of 1 Thess. 4:17—"we will be caught up," ['to carry off' - or 'catch up']).

A Dictionary meaning for Rapture says: ' The transporting of a person from one place to another, especially to heaven '.

So when we mention the Rapture, we are not saying the actual word is in the bible, but what it means is, the removing or taking away of the Christian believers just before the seven year tribulation begins