Being induced

Brittany • Hello everyone! I am 24 and pregnant with my first baby, my boyfriend and I have now been together for almost 4 years!
Hello, 
So far I see a bunch of women saying they have been induced with pitocin or the cytocect or something. I thought being induced was them just breaking your water? If you are induced does it have to be with some kind of medicine or can you just get your water broke and that be considered you being induced?