1. Neglecting to do something; leaving out or passing over something
   "The omission of key evidence from the report weakened the case"
    
2. Something that has been omitted
   "she searched the table for omissions"
    
3. Any process whereby sounds or words are left out of spoken words or phrases
   "The omission of the 't' sound in 'often' is common in casual speech";
   - deletion
    
4. A mistake resulting from neglect
   "The omission of key evidence weakened the prosecution's case";
   - skip

Derived forms: omissions

Type of: disregard, disuse, error, fault, linguistic process, mistake, neglect

Encyclopedia: Omission, Sins Of