You use something to refer to a thing, situation, event, or idea, without saying exactly what it is.
He realized right away that there was something wrong...
There was something vaguely familiar about him...
You can use something to say that the description or amount that you are giving is not exact.
He described the smell as something between a circus and a seaport...
Clive made a noise, something like a grunt...
If you say that a person or thing is something or is really something, you mean that you are very impressed by them.
You're really something...
The doors here are really something, all made of good wood like mahogany...
You can use something in expressions like 'that's something' when you think that a situation is not very good but is better that it might have been.
Well, at least he was in town. That was something...
Well, you're staying. That's something I suppose.
If you say that a thing is something of a disappointment, you mean that it is quite disappointing. If you say that a person is something of an artist, you mean that they are quite good at art.
The city proved to be something of a disappointment...
She received something of a surprise when Robert said that he was coming to New York...
If you say that there is something in an idea or suggestion, you mean that it is quite good and should be considered seriously.
Christianity has stood the test of time, so there must be something in it...
There had been something in Des's first statement...
You use something in expressions such as 'or something' and 'or something like that' to indicate that you are referring to something similar to what you have just mentioned but you are not being exact.
This guy, his name was Briarly or Beardly or something...
The air fare was about a hundred and ninety-nine pounds or something like that.
机票 199 英镑左右，大概是这个价钱。