Final answer:
An interjection is a word or phrase that expresses strong emotions or sudden feelings.
Step-by-step explanation:
An interjection is a word or phrase that expresses strong emotions or sudden feelings. It is often used to show surprise, joy, or excitement. Examples of interjections include 'Wow!', 'Oh no!', and 'Yikes!'. Interjections are not grammatically linked to the rest of the sentence and are usually followed by an exclamation point or a comma.
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