As my soulmate "Fluffy"

e.g If I say "Lucy Lace is no prettier than Lucy Black" then probably Ms.Lace has won a beauty contest, or Ms.Black is famously plain.
In other environments "no" may be quite different, and will often be a different part of speech.
The people who think they know everything and post here, one assumes, mainly in order to be rude to people, have said nothing that means anything at all, as per usual.