1. Danger is the central concept in the framework of omission and the subject of omission is the control of danger. Σ���Dz���Ϊ��Ȩ��Ϊ�ܹ������ĸ��������Ϊ��Ȩ����������Σ�տ����ߡ�
3. A mark or series of marks(�� or �� for example) used in writing or printing to indicate an omission, especially of letters or words. ʡ�Ժ�д����滭��ʹ�õı�ʾʡ��һ����һ���ı�ǣ����磬�����������ر�����ĸ�ʡ�
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n.
1. a mistake resulting from neglect
2. something that has been omitted
3. any process whereby sounds are left out of spoken words or phrases
4. neglecting to do something; leaving out or passing over something