Respec

Respec is a MMO term that means somehow changing your character build that you already have.

In DDO you can respec: As of Update 3, it is not possible to respec your race or alignment.
 * enhancements by talking to your class trainer
 * spells (for bards and sorcerers) by talking to your class trainer
 * feats by talking to Fred
 * skills, stats, classes by lesser/greater reincarnation


 * * True Reincarnation - You lose all XP, quest flags, raid completions, favor, and tomes used. This should be considered Rerolling rather than Respec'ing

Costs to Respec a feat
There is a quest given by Lockania in the Marketplace to gain a free feat respec token once per character. Beyond that, both gold and a dragonshard are required, with the amount/type depending on the current character level.