Concentrated
Part of speech: adjective
Definition: Not dilute; having a high concentration. Intense; directed towards a specific location.
Part of speech: verb
Definition: To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force.
Example sentence: I would rather have one article a day of this sort; and these ten or twenty lines might readily represent a whole day's hard work in the way of concentrated, intense thinking and revision, polish of style, weighing of words.
Accumulated
Part of speech: verb
Definition: To heap up in a mass; to pile up; to collect or bring together (either literally or figuratively)