Question

What is the possessive form of "U.S."? Is it U.S.' or U.S.'s?

Answer 1

The possessive from of "U.S." is U.S.'

Explanation:

Possessives of abbreviations are formed exactly the same way they would be if the noun was spelled out completely.

The single possessive is formed by adding an -'s to the end of the noun.

The plural possessive is formed by just adding an apostrophe to the end of the noun.

This is where it gets a little tricky. The "United States" is a singular noun, we always say that: "The United States (U.S.) is. . ." not "The United States (U.S.) are. . ."

The United States is actually a noun in plural form (it ends in an "s") but is singular in meaning. The possessive form of these nouns are always the same as plural nouns so, for example:

United States' (U.S.')

Professor Stevens'

Goodness' sake

I hope this helped!