I wish you could look through my closet! I have lots of "cocktail dresses" I don't have the opportunity to wear, since I always have to wear my celebrant dress.

I consider a "cocktail dress" to be a fitted sleeveless dress in black or other color, knee length or above, but could also be tea length. I've been to thousands of weddings and pretty much anything goes, even pants. I just aim to wear something less fancy as the mothers of the bride/groom and certainly not white, since that's usually for the bride.

I'm sure if you're worried about it, whatever you choose will be just fine!

Your education has been neglected.

Not floor length, somewhat dressy, like what you would wear to a high-priced restaurant or wedding, or a very simple dress with cool accessories.

You can't go wrong with your dress choice. Just tell them whatever you have on is a cocktail dress. It has to be you showed up in it!