The plural of "burrito" is "burritos".
Burrito.
The plural form of him, her, or it is them. (objective pronouns)
Italy does not have a plural form.
The plural form of beauty is beauties.
The plural form of quiz is quizzes.
The plural form is spelt : subpoenas.
The plural form of radius is radii.
Trout is plural
The plural of foot is feet
The plural of dish is dishes.
Burritos
The plural form for the noun index is indexes.