1.   He dismissed the thought as nonsense.

2.   He hesitated over recognizing or dismissing this thought.

3.   I tried to dismiss the thought.

4.   He dismissed that thought, impatiently.

5.   She tried to dismiss the thought even as it formed.

6.   She dismissed the thought instantly.

7.   As the interview proceeded, Mrs. Dole departed from her usual carefully parsed responses and dismissed any thought that she could have geared up faster.

8.   But he dismissed the thought of pursuing Andre Rison, who has yet to re-sign with the Raiders and could be the odd man out with addition of Rice.

9.   But I quickly dismissed the thought and never bothered mentioning it to anybody.

10.   Coach George Karl dismisses such thoughts as psychobabble.