Verb

(concentrat)

(ambitransitive) To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force.

to concentrate rays of light into a focus

to concentrate the attention

Let me concentrate !

To increase the strength and diminish the bulk of, as of a liquid or an ore; to intensify, by getting rid of useless material; to condense (qualifier, as opposed to 'dilute').

to concentrate acid by evaporation

to concentrate by washing

To approach or meet in a common center; to consolidate.

Population tends to concentrate in cities.

* {{quote-book, year=2006, author=

, title=Internal Combustion , chapter=2 citation , passage=Buried within the Mediterranean littoral are some seventy to ninety million tons of slag from ancient smelting, about a third of it concentrated in Iberia. This ceaseless industrial fueling caused the deforestation of an estimated fifty to seventy million acres of woodlands.}}

To focus one's thought or attention (on).

Verb

(en verb)

(lb) To pay attention to a sound or speech.

:

*{{quote-book, year=1922, author=(Ben Travers), title=(A Cuckoo in the Nest)

, chapter=1 citation , passage=He read the letter aloud. Sophia listened with the studied air of one for whom, even in these days, a title possessed some surreptitious allurement.}}

(lb) To expect or wait for a sound, such as a signal.

:

*

*:It was April 22, 1831, and a young man was walking down Whitehall in the direction of Parliament Street.. He halted opposite the Privy Gardens, and, with his face turned skywards, listened until the sound of the Tower guns smote again on the ear and dispelled his doubts.

*

*:He reined Wrangle to a walk, halted now and then to listen , and then proceeded cautiously with shifting and alert gaze.

(lb) To accept advice or obey instruction; to agree or assent.

:

*

*:Never listen when they tell you that Man and the animals have a common interest.

To hear (something or someone), to pay attention to.

*1485 , Sir (Thomas Malory), (w, Le Morte d'Arthur) , Book XX:

*:‘But, sir, lyars ye have lystened , and that hath caused grete debate betwyxte you and me.’

*1592 , (William Shakespeare), : v 3

*:Lady, vouchsafe to listen what I say.