I have about 10-15 pages in a specific category, and I use three templates to write the meta descriptions of each. Each page has it's own meta description, but it follows one of the three templates that I wrote, I just replace the keywords and make it sound nice and fluent.
For example a template could look like:
- On this page you'll find all of the X secrets and codes. We have over X secrets to blow your mind.
I would just replace X with the specific names, however I have three different templates like the one above. I would just choose a random template one to fill in a meta description.
Would this be considered as duplicate content, even though they all do look pretty different from eachother? I just want to be on the safe side.