Here's what rhymes with punishment.

Consider these alternatives

meted / repeated cruel / fuel offenders / members impose / those spared / help executions / institutions execution / solution jail / male torture / order imposed / most crimes / times retribution / solution fines / lines inhuman / human offenses / extensive prosecution / solution prison / given caning / training retaliation / relation violators / violaters severe / will subjected / rejected reprimand / hand disciplinary / very death / less should / would beatings / meetings