To put in prison. (Merriam – Webster)
To subject to confinement. (Merriam – Webster)
To put or keep someone in prison or in a place used as a prison. (Cambridge Dictionary)
To keep someone in a closed place and prevent them from leaving it. (Cambridge Dictionary)
To imprison; confine. (Dictionary.com)
To enclose; constrict closely. (Dictionary.com)
If people are incarcerated, they are kept in a prison or other place. (Collins Dictionary)
Information on Criminal Aliens Incarcerated in Federal and State Prisons.
Race, Education, and Reintegrating Formerly Incarcerated Citizens.