Call on and Implore

Call on verb - Have recourse to or make an appeal or request for help or information to.

Implore and call on are semantically related in beg topic. In some cases you can use "Implore" instead a verb "Call on", when it comes to topics like appeal to.

Implore verb - To make a request to (someone) in an earnest or urgent manner.

Call on and implore are semantically related in appeal to topic. You can use "Call on" instead a verb "Implore", if it concerns topics such as plead with.