(~s, concentrating, ~d)
Frequency: The word is one of the 3000 most common words in English.
1.
If you ~ on something, or ~ your mind on it, you give all your attention to it.
It was up to him to ~ on his studies and make something of himself...
At work you need to be able to ~...
This helps you to be aware of time and ~s your mind on the immediate task.
VERB: V on n/-ing, V, V n on n
2.
If something is ~d in an area, it is all there rather than being spread around.
Most development has been ~d in and around cities.
VERB: usu passive, be V-ed in n, also be V-ed adv
3.
Concentrate is a liquid or substance from which water has been removed in order to make it stronger, or to make it easier to store.
...orange juice made from ~.
N-MASS
4.
If you say that an unpleasant fact or situation ~s someone’s mind, you mean that it makes them think clearly, because they are aware of the serious consequences if they do not.
A term in prison will ~ his mind wonderfully.
PHRASE: V and N inflect