Its layman's term from my understanding. Stock and broth are interchangable is common English but the technical side of things is more specific from what I am told.

Scintillating Scrote illusion 1 Range: self Casting time: reaction Duration: 1 minute (concentration) V,S,M (a scrote)

When targeted in the groin, you may take a reaction to magically cast illusions which make it impossible to target your groin.

So while yes it is often true that a stock or broth can have vegetables in it, bones and meats are often found in most all broth, whereas stocks are more often based around vegetables due to the potency of stock being lower than broth.

Issue here is that lines are often blurred in practice (seeing as culinary arts are an expressive one).

I know nobody cares, but technically a stock is rendered from plant based ingredients and a broth is rendered from animal based ones.

Sorry I had to make the clarification.

Source: my wife is a professional culinarian.

Now did you hear about the dancing plague?