So, let's start the way we learnt in school- by defining polyglotism. According to Wikipedia, the source for everyone, from everyone, polyglotism (or polyglottism) is the ability to master numerous languages. Multilingualism is a word with a similar meaning.
Literally speaking, 'poly' is many and 'glot' is tongue..
A person with many tongues. A person who speaks many tongues (languages).
Now I consider myself as a polyglot, though I don't consider myself to have mastered these languages at the same level ( which is a biiiig problem with polyglotism) :
1- Arabic - mother tongue
So in a way, I'm a hyperpolyglot.. though my french listening/speaking skills suck, though my hindi writing skills suck, and though I haven't spoken 10 words of spanish in 5 years and haven't had to listen to it for long periods of time since 2006..
(To be continued)