English is beautiful. It has many legitimate forms of speech. They are not logical fallacies (many of the names come from the Greek, who were kings of logic.) I think I'm missing a few but here goes:

**Simile**: A comparison between two different things using "like" or "as."

**Metaphor**: A direct comparison between two unrelated things, implying they are alike in some way. "Time is a thief."

**Personification**: Assigning human characteristics to non-human objects or abstract concepts, e.g. "The wind whispered through the trees."

**Hyperbole**: An exaggerated statement not meant to be taken literally, used for emphasis or effect. "I'm so hungry I could eat a horse!"

**Oxymoron**: A figure of speech in which two opposite ideas are joined to create an effect: "Deafening silence."

**Irony**: A figure of speech where the intended meaning is opposite to the literal meaning.

**Synecdoche**: A figure of speech in which a part is used to represent the whole or vice versa.

**Metonymy**: A figure of speech in which one word or phrase is substituted with another closely associated with it.

**Euphemism**: A mild or indirect word or expression substituted for one considered to be too harsh or blunt or coarse.