Akkordeon for a lexicon

I want to put a alphabetical list on my website with explanations for different words.

My list isn’t complete until now, so it should be so flexible, that I can put in further explanations between the existing ones.

From the look I think the enfold “Akkordeon” is very nice for such a thing but I don’t know, if it is really
suitable for what I need.
This are my requirements:
-I should be able to safe my list or export it
-I want to sort it alphabetical
-Google should find the words and like it as much as when I write it in a list with “heading” format

So what do you think, can I use the “akkordeon” or do you know a better solution?
Thank you very much!!