General noun:
* Admission: This is the most common and versatile noun, meaning the act of admitting something. It can be used in various contexts, such as "admission of guilt," "admission to the hospital," or "admission to a university."
More specific nouns:
* Confession: This refers specifically to admitting wrongdoing or guilt.
* Acknowledgement: This means recognizing something as true or valid.
* Acceptance: This signifies agreeing to something or taking something in.
* Entrance: This refers to being allowed to enter a place.
Example:
Instead of "He admitted his mistake," you could say:
* "His admission of his mistake was sincere."
* "He made a confession about his mistake."
* "He acknowledged his mistake."
* "He accepted his mistake."
The best choice will depend on the specific situation and the nuance you want to convey.