How Do I Categorize "Terms" In Module Scripts?

I'm trying to make a Module Script called "Settings", and I want to categorize each "term". Here's what I mean:

local module = {
    Sounds = {
        Touch = 72948375; -- SoundId Example
        TouchError = 75638573; -- SoundId Example
    }
    BrickColors = {
        Orange = BrickColor.new("CGA brown");
        Blue = BrickColor.new("Bright blue");
    }
}

return module