A power word (or power phrase) is a word (or a phrase) that is used to make one's statement stronger. It is a form of a loaded language and is an antonym of euphemism; however, it is not always the same thing as either a dysphemism or a cacophemism, which imply the use of harsh or vulgar words.
Note: Many times power words are used in a semantically correct way, but where a synonym would be more appropriate. The choice is made precisely because of the opinion of an individual or a group.
Power words are used often in our lives. They are used in politics to sell ideas, in advertisements to sell products, and in religions to sell beliefs. Power words will often create an impression that any logical argument against the speaker is absurd, when that is not always the case. The use of a power word that also has a more general meaning can result in the No True Scotsman fallacy.
