ما معنى Market abuse, inside information, insider dealing؟

Market abuse is insider dealing, the unlawful disclosure of inside information, and market manipulation, including attempts. Inside information is information of a precise nature, not made public, relating directly or indirectly to an issuer or a financial instrument, which would be likely to have a significant effect on prices if it were made public. Insider dealing is using inside information to buy or sell, for oneself or another, the instruments to which it relates, including by cancelling or amending an order placed before the information was received.