What is an antonym for omission?

Here are some antonyms for omission, depending on the context:

General antonyms:

* Inclusion

* Addition

* Insertion

* Mention

* Statement

* Disclosure

* Revelation

More specific antonyms:

* Emphasis (if the omission was meant to de-emphasize something)

* Detail (if the omission was a lack of detail)

* Explicitness (if the omission was meant to be vague)

* Truth (if the omission was a lie)

The best antonym will depend on the specific situation and the intended meaning.