If you dismiss something, you decide or say that it is not important enough for you to think about or consider. Mr Wakeham dismissed the reports as speculation I would certainly dismiss any allegations of impropriety by the Labour Party = discount
If you dismiss something from your mind, you stop thinking about it. I dismissed him from my mind `It's been a lovely day,' she said, dismissing the episode. = banish
To lay aside or reject as unworthy of attentions or regard, as a petition or motion in court
When a judge dismisses a case against someone, he or she formally states that there is no need for a trial, usually because there is not enough evidence for the case to continue. An American judge yesterday dismissed murder charges against Dr Jack Kevorkian. their attempt to have the case against them dismissed
To terminate legal action involving outstanding charges against a defendant in a criminal case Motion to Dismiss is when the defense attorney asks the Court to dismiss the case
Termination of a case The court may enter an order dismissing a case for cause or the prosecuting attorney for the state may dismiss the matter for reasons such as lack of evidence, death of a witness, or because the matter is to be refiled due to the original indictment being defective, etc
When an employer dismisses an employee, the employer tells the employee that they are no longer needed to do the job that they have been doing. the power to dismiss civil servants who refuse to work = sack, fire