0 an object, situation, quality, or action that is not exactly known or stated:
We thought there was something wrong because we hadn't heard from you.
There's something wrong with the engine - it's making strange noises.
Something's happened to upset him but we don't know what it is.
Is there something you'd like to say?
Don't just stand there, do something.
There's just something strange about him.
We were given five hundred pounds in compensation which isn't much but at least it's something.
1 used after a number like 20, 30, etc. to refer to the age of a person who is between 20 and 29, 30 and 39 years old, etc., or to a person who is of this age: