i have 2 decks, a vocab and a sentence. every vocab i have is in some sentence in the sentence deck. is there a way to link the vocab word to the sentence where i can view the sentence that the vocab word is in with a click?

You didn't mention if you were using Anki or not, but I'm going to assume you are. Something like that isn't possible within the general features of Anki, I'm sure a plugin could be written to do something like that, but to me it just makes more sense to simply add an extra field to your Vocab model called "Example" or something and copy and paste the sentence from your sentence deck over to it. That is what I'm doing currently.