Something is in the air meaning

From Longman Dictionary of Contemporary Englishbe in the airbe in the aira) if a feeling is in the air, a lot of people feel it at the same time  There was a sense of excitement in the air. b) to be going to happen very soon  Change is in the air. → airExamples from the Corpusbe in the air• And something else was in the air.• He is in the Air Force.• Maybe a truce is in the air.• So in a very short time we were in the air.

What are these?

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Which and that are used in very similar ways (especially to introduce clauses that refer back to an earlier part), but there is often a key difference.

Before we get into the grammar, let’s take a look at two similar sentences, one using that and one using which.

I wrote about my favorite movie that was released in 1994. 

I wrote about my favorite movie, which was released in 1994. 

Both sentences are about a movie. But there’s a difference in what’s being communicated.

In the first sentence (the one using that), the speaker is indicating that the movie they wrote about is their favorite movie released in 1994—not necessarily their favorite movie in general.

In the second sentence (the one using which), the speaker is saying that the movie is their favorite in general, while also mentioning that it was released in 1994. In this sentence, you could take away the part that starts with which and the sentence would retain the same basic meaning.

But that’s not true of the first sentence—taking away that was released in 1994 would alter the meaning of the sentence.

That’s because that was released in 1994 is what’s called a restrictive clause, which is a part of a sentence that provides essential information about the part before it. A restrictive clause can’t be removed without changing the essential meaning of the sentence.

The second sentence (the one using which), ends in a nonrestrictive clause, which provides nonessential information—information that can be removed without altering the main message of the sentence. Usually, nonrestrictive clauses are marked off by commas (or em dashes). Think of a nonrestrictive clause as an aside—additional information mentioned along the way.

This grammatical distinction between that and which is largely used in formal American English. In informal speech, it is very common to use that and which interchangeably. And sometimes the difference in what they convey is very subtle or practically nonexistent.

Still, when used in clauses like the ones in our examples, which is usually preceded by a comma, but that is not.

What does there is something in the air mean?

What does feel it in the air mean?

What is the sentence of in the air?

What does the metaphor up in the air mean?