I have some doubts. I will post them one by one. Doubt #1:what are sprites?

In Pokemon Creed, sprites are simply just any picture you can find on this site. So for example that includes Arceus, AncientMewtwo, Trainer Sprites, Items etc.

Thanks im, my 2nd doubt: what are ribbons?what are their use?

Take a look at this thread:
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Ribbons don't really have any use but they're good for showing off your achievements :)

Thanks again then what's roleplaying category in the forums?

It's for, as the title suggests, roleplaying.
In a way, roleplaying is like writing a story with others, but either using OCs (characters you made) or playing as canon characters from other things (Canon characters are characters that show up in whatever franchise and were created by the creators of said franchise. Examples:
Ash from Pokemon, Mario from...well...Mario, Sonic from Sonic the Hedgehog, etc.)
Well, for some examples, here's a few of mine.
(Randomly picked. XD)
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Thanks shinxey, next: how to gain shakespeare and lil' helper userbr?

If I remember correctly, the Creed's Lil' Helper one was the one from a contest seeing who could come up with an idea that could benefit Creed the most.
(Obviously, not available anymore.)
And the Creed Shakespeare one you get for making high-quality roleplays in the Ralts Roleplaying Center of the forums. That means to create one with good spelling and grammar, and have an original and interesting idea for a storyline. And then to, ofc, participate in it a lot. That means to not start one and quit right away, or to join one and quit right away.

Thanks again, then what are the words that we should not use on chat?

Pretty much anything that involves swearing, flaming etc. isn't allowed on chat. That includes the word "mustard"

You can say 'Damn' and 'Hell', but the rest of the swear words will get you banned.
As IM Challenger said, things like flaming and trolling (fighting, provoking fights, etc) will also get you banned.
And Creed Bot doesn't like it when you say 'Custard' or 'Mustard' because of the last four letters in the word. It's swear detection thing picks that up and treats the word as a swear, even though it's just a pudding/condiment.
That's really about it.

Oh thanks... And what are referrals? How can we gain coins from them

You can pretty much find all the info on referrals in this link:
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It tells you how to gain coins and recommended places to place your referral links etc.

April 02, 2016 11:37:13amShinxey Wrote:  You can say 'Damn' and 'Hell', but the rest of the swear words will get you banned.
As IM Challenger said, things like flaming and trolling (fighting, provoking fights, etc) will also get you banned.
And Creed Bot doesn't like it when you say 'Custard' or 'Mustard' because of the last four letters in the word. It's swear detection thing picks that up and treats the word as a swear, even though it's just a pudding/condiment.
That's really about it.

Theres also tardes. Make sure you dont say late in spanish or mispell "trades"
Lugia warrior knows this from personal experience lol

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If you hover over Unlock, it tells you how to get the userbar