We don't have synonyms for omissions yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are mission, omission and emission.
(n) :
(uncountable) The act of neglecting to perform an action one has an obligation to do.
(n) :
(countable) An instance of those acts, or the thing left out thereby; something deleted or left out.
(n) :
Something not done or neglected.
(n) :
(grammar) The shortening of a word or phrase, using an apostrophe ( ' ) to replace the missing letters, often used to approximate the sound of speech or a specific dialect.
(n) :
(uncountable) The act of neglecting to perform an action one has an obligation to do.
(n) :
(countable) An instance of those acts, or the thing left out thereby; something deleted or left out.
(n) :
Something not done or neglected.
(n) :
(grammar) The shortening of a word or phrase, using an apostrophe ( ' ) to replace the missing letters, often used to approximate the sound of speech or a specific dialect.