Powerful
Part of speech: adjective
Definition: Having, or capable of exerting power, potency or influence.
Example sentence: If you do build a great experience, customers tell each other about that. Word of mouth is very powerful.
Potent
Part of speech: adjective
Definition: Possessing strengthBeing effective in small quantities.Having a sharp or offensive taste.able to procreate.very powerful or effective.
Example sentence: There are times when even the most potent governor must wink at transgression, in order to preserve the laws inviolate for the future.