Dispensational Premillennialism:
In parts.
Dispensationalism was a system formalized by John Nelson Darby which maintains that history is divided into multiple dispensations in which God acts in multiple different ways. Dispensationalists believe in premillennialism and in a rapture that will happen before the second coming. [Wikipedia]
Premillennialism:
Premillennialism, in Christian eschatology, is the belief that Jesus will physically return to the Earth (the Second Coming) before the Millennium, a literal thousand-year golden age of peace. Premillennialism is based upon a literal interpretation of Revelation 20:1–6 in the New Testament, which describes Jesus’s reign in a period of a thousand years. [Wikipedia]
Rapture:
The rapture is an eschatological theological position held by a few Christians, particularly those of American evangelicalism, consisting of an end-time event when all Christian believers who are alive, along with resurrected believers, will rise “in the clouds, to meet the Lord in the air.” The origin of the term extends from Paul the Apostle‘s First Epistle to the Thessalonians in the Bible, in which he uses the Greek word harpazo (Ancient Greek: ἁρπάζω), meaning “to snatch away” or “to seize,” and explains that believers in Jesus Christ would be snatched away from earth into the air. [Wikipedia]
Noted in “For some Christians, ‘rapture anxiety’ can take a lifetime to heal,” A. J. Willingham, CNN:
The concept of the rapture, known theologically as dispensational premillennialism, is not prevalent in Catholic or mainline Protestant denominations like Episcopalianism or Presbyterianism, and is most commonly adhered to in evangelical and fundamental churches. This line of theology draws heavily upon a letter from the Apostle Paul to the Thessalonians, included in the Bible, that says believers in Jesus would be snatched or seized into the air.
Quite literally. Fun fact from the article: The word rapture does not appear in the Bible. Which is a bit of a problematic statement in that the Bible is not originally an English document.