General Opposites:
* Exit: This is the most common opposite, meaning to leave a place.
* Leave: Similar to "exit," but can also refer to departing in a more general sense.
* Depart: Similar to "leave," but can also refer to a more formal departure.
* Go out: This is a more informal way to say "exit."
Specific Opposites:
* Reject: This is the opposite of "enter" if you are talking about entering a place or group where you are not wanted.
* Refuse: Similar to "reject," but can also refer to refusing to do something.
* Withdraw: This is the opposite of "enter" if you are talking about entering a competition or a contract.
Other Related Words:
* Stay: This is not a direct opposite, but it means to remain in a place, as opposed to entering or leaving.
* Remain: Similar to "stay," but often used in a more formal context.
To determine the best opposite word for "enter," you need to consider the context of the sentence. For example:
* "He entered the room." The opposite would be "He exited the room."
* "She entered the competition." The opposite would be "She withdrew from the competition."
* "They entered the building." The opposite would be "They left the building."