Definitions

1. adjective

relating to punishment or the punishment of a crime

“The penal code made it clear that violent crimes would be prosecuted harshly.”

2. noun

a penalty, especially a fine or imprisonment

“The penal was imposed on the company for violating labor laws.”

3. adverb

in a way that is related to punishment or penalties

“The new law will penal the company heavily if it continues to pollute.”