Here are some examples:
* "The use of mobile phones is not permissible during the exam." This means using mobile phones is forbidden during the exam.
* "The doctor said that light exercise is permissible." This means light exercise is allowed for the patient.
* "The building code permits a maximum of three stories, but anything less is permissible." This means the building code allows up to three stories, and anything less than that is also allowed.
Essentially, "permissible" signifies something that falls within the boundaries of what is considered acceptable or allowed.