The year 1965 was the centennial year for the ending of the US Civil War. It is a noun and means the one hundredth anniversary.
Submarine activity is very important to the security of the US.
The capitalized US, is the abbreviation for the country United States, a proper noun. The lower case word 'us' is a pronoun, not a noun; the first person, plural, objective case.
The US does not use diplomacy in the traditional sense. The US favours intimidation and aggression which, many would argue, is a decidedly undiplomatic approach.
US is not a word, it's an abbreviation. United States is a proper noun.
The word us is a valid scrabble word. It means the objective case of the pronoun we.
you use (a) if the next word is not a vowel. you us (an) if the next word is a vowel.
come with us!
The word us refers to Christ and the Father.
yes because you just did
There is chaos among us.
There's nobody home but us chickens. Let us go free!
The band director strongly encourages us to use dynamics.
The production helped us produce
Let us resolve our differences.
The boxer frighteningly barked at us.
moM ....UM...MERcy on us.