Concept:A simile is a figure of speech that compares two different things using words like "like" or "as" to highlight a shared quality.Explanation:A simile is not a part of speech (like noun, verb) but a literary device used to create vivid imagery. For example, "Her smile is as bright as the sun" uses "as...as" to compare. It makes descriptions more expressive and is a common tool in poetry and everyday language.Answer:Option B – a figure of speech.