What are the definitions of the terms simile, metaphor, hyperbole and alliteration?

Firstly, it's important to know what each of these words means because they are all techniques used frequently in all kinds of texts (poetry, fictional and non-fiction). It's also useful to be able to recognise and talk about these terms because when you are given a new text, being able to spot these techniques can be a good way to start talking about how the text is written, what the author intended, and the impact on readers.Here are the definitions:Simile: A simile is when one think is compared (similar) to something else, using "as" or "like". For example, "she was as light as a feather", "he had a voice like thunder". Metaphor: