Gospel Definitions: Dictionary.Com
1. the teachings of Jesus and the apostles; the Christian revelation.
2. the story of Christ’s life and teachings, esp. as contained in the first four books of the New Testament, namely Matthew, Mark, Luke, and John.
3. (usually initial capital letter) any of these four books.
4. something regarded as true and implicitly believed: to take his report for gospel.
5. a doctrine regarded as of prime importance: political gospel.
6. glad tidings, esp. concerning salvation and the kingdom of God as announced to the world by Christ.
7. (often initial capital letter) Ecclesiastical. an extract from one of the four Gospels, forming part of the Eucharistic service in certain churches.
8. gospel music.
9. of, pertaining to, or proclaiming the gospel or its teachings: a gospel preacher.
10. in accordance with the gospel; evangelical.
11. of or pertaining to gospel music: a gospel singer.