v.
1.maintain a required pace or level
2.lengthen or extend in duration or space
3.keep in safety and protect from harm, decay, loss, or destruction
4.keep informed
5.prevent from going to bed at night
Idiom of the Day
can't see the forest for the trees
to be unable to understand the whole picture of something because you are only looking at small parts of it
Our boss has no understanding of most problems because he can't see the forest for the trees.