The word "prevent" means to stop something from happening or to keep something from occurring. Some antonyms of "prevent" are:
Allow: This word means to permit or let something happen. For example, "The teacher allowed the students to use their notes during the exam." While "prevent" stops an action, "allow" gives permission for it to take place.
Permit: Similar to "allow", "permit" means to give consent or authorization. For instance, "The city permitted the construction of a new park." It is the opposite of preventing something by granting approval.
Promote: This term means to encourage or support the growth or development of something. For example, "The company promoted a healthy work-life balance." Instead of preventing, it actively works towards making something happen or become better.
Encourage: "Encourage" means to give support or inspiration to someone to do something. For instance, "The coach encouraged the team to keep trying." It is the opposite of preventing as it motivates and instigates rather than stops.
In conclusion, these antonyms of "prevent" offer different ways of expressing the opposite concept of allowing, permitting, promoting, or encouraging something to happen rather than stopping it.