Re: <abbr>, <acronym> and initialisms

>
> Yes. Definition is from the New Oxford American Dictionary.
> initialism: an abbreviation consisting of initial letters  
> pronounced separately (e.g., CPU).
> • an acronym.
>
> abbreviation: a shortened form of a word or phrase.
>
> Examples include Dr. (doctor), abbr. (abbreviation), WWW (World  
> Wide Web) and UK (United Kingdom).
>
> acronym: a word formed from the initial letters of other words.
>
> Examples include radar (radio detection and ranging) and laser  
> (light amplification by stimulated emission of radiation).

What is WWW then?

you say it is an initialism, which is an acronym, but then example it  
as an abbreviation and not an acronym later.

I'm confused?!?!