Question

Identify the plural form of the noun: army
a. armies
b. army
c. armys
d. None of the above

Answer 1

Hint: Army is a large number of people. It is also an organized military force equipped for fighting on land.

Complete answer:
In general, English, when a word ends with 'y' and has a vowel, then to change the word into its plural form, we replace 'y' with an 'i' and add es. The army is a singular collective noun; hence is not the plural form of army. Armys is not a dictionary word, and hence this option is marked out.
Armies are the plural form of army. It refers to multiple collective groups of individuals organized in a military force equipped for fighting. They are trained to serve their country during times of wars and peace. Both men and women can be a part of it.

Example: The two armies were in position and would attack at the instruction of their senior.

Note: As a family or group, the army is a singular and collective noun. But even then armies are used for the plural.