Metaphor, metonymy, and synecdoche are important figures of speech in Spanish language usage.
Metaphor is a figure of speech where a word or phrase is applied to an object or action to which it is not literally applicable, in order to suggest a resemblance, such as 'Life is a highway.' Metonymy is a figure of speech that replaces an idea or thing with one that is related or connected in meaning, as seen in phrases like 'putting your skin on the table.' Synecdoche is a form of metonymy where a part represents a whole or vice versa, like using 'Georgia' to refer to its constituents.