Match the definition to the term.

1. a form of noun, pronoun, or adjective used to show its relation to other words case
2. the grouping of nouns into the classes masculine, feminine, and neuter personal pronoun
3. an inflection or word form that shows whether one or more than one is meant gender
4. a change in pronouns or verbs used to show the person speaking, the person spoken to, or the person or thing spoken about person
5. a pronoun that shows by its form whether it refers to first person, second person, or third person number