Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLES FROM THE WEB FOR CONCENTRATION

And how was I to know, then, that the concentration was due to the necessity of invention?

He has the constitution of a rhinoceros, the digestion of an ostrich, and the concentration of an oyster.

Oh, gentlemen, have ye ever seen such a concentration of vice?

“Quite,” said Barter, whose face was now a mask of concentration.

Let us now consider some of the implications of this concentration on rendering service.

The pupil is being trained in systematic thought and in concentration.

It was a remarkable exhibition of concentration on his part.

He had not much of that faculty to be sure, but there was in it the force of concentration.

And he suffered most from the concentration of his thought upon the treasure.

Drake hitched his chair nearer and focused all his powers of concentration.

WORD ORIGIN

1630s, "action of bringing to a center," noun of action from verb concentrate (v.). Meaning "a mass so collected" is from 1670s; "continuous focus of mental activity" is from 1846.

MORE RELATED WORDS FOR CONCENTRATION

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.