Dogma, doctrine, teaching?

[curtins]

Ok so what's the difference between doctrine, dogma, teaching and anything else of that sort in the church? my history teacher said dogma was church propaganda in the middle ages but I'm like uhhh we still have dogma today. What out of these things is infalliable teaching. Thanks

[cappie]

As far as I know ...[b]Doctrine[/b], from Latin doctrina (compare doctor), means "a body of teachings" or "instructions", taught principles or positions, as the body of teachings in a branch of knowledge or belief system. The Greek analogy is the etymology of catechism.
Often doctrine specifically connotes a corpus of religious dogma as it is promulgated by a church, but not necessarily:
Examples of religious doctrines include:
• Christian Trinity and virgin birth
• transubstantiation and immaculate conception

[b]Dogma[/b] (the plural is either dogmata or dogmas) is belief or doctrine held by a religion, ideology or any kind of organization to be authoritative and not to be disputed or doubted.

Teaching is the activity of imparting a body of knowledge in this case imparting a doctrine or teaching a dogma

Maybe someone else has a better explaination