Dismiss is defined as the act of sending someone or something away, usually in a perfunctory or abrupt manner. Different words can be used to convey the same meaning as dismiss, such as terminate, discharge, release, and expel. Other synonyms of dismiss include reject, decline, brush off, repudiate, and ignore. Additionally, words like shun, cast off, forsake, and spurn can also be used in different contexts where dismiss may not fit appropriately. Using synonyms of dismiss can provide variety in writing and help avoid redundancy. It is essential, however, to use synonyms appropriately to ensure that the intended meaning is not lost.