Definition

1. Noun:
   • The action or power of focusing one's attention or mental effort: The state of giving complete attention to a single object or activity.
   • The process or result of gathering or accumulating people or things in one place: The act of bringing together or the state of being brought together in a specific location.
   • The relative amount of a particular substance contained within a solution or mixture: The measure of the quantity of a component in a given volume or area.

Examples of Usage

• Noun:
  • Her concentration was so deep that she didn't hear the doorbell. (She was completely focused.)
  • There is a high concentration of tech companies in this city. (Many tech companies are gathered here.)
  • The concentration of salt in the water was measured. (The amount of salt per unit of water was determined.)

Advanced Usage

• "Concentration of power": The accumulation of authority or control in a single entity or place.
  • The constitution was designed to prevent a dangerous concentration of power.
• "Concentration span" (or "attention span"): The length of time one can focus on a task.
  • Young children often have a short concentration span.

Variants and Related Words

• Concentrate (verb): To focus all one's attention or mental effort; to bring together in one place; to make a substance stronger by removing parts of it.
  • You need to concentrate on your work.
• Concentrated (adjective): Intensely focused; having a high strength or density.
  • She gave him a concentrated look. (A very focused look.)
  • This is a concentrated orange juice. (Juice with most of the water removed.)
• Concentrative (adjective): Tending to or involving concentration.

Synonyms

• Focus: The center of interest or activity; the state of clear visual definition.
• Attention: The act of closely observing or listening.
• Density: The degree of compactness of a substance; the number of people or things in a given area.
• Intensity: The quality of being intense, especially in mental effort.

Related Phrases

• "Lose concentration": To stop being able to focus.
  • The noise made him lose his concentration.
• "Require concentration": To need focused mental effort.
  • This puzzle requires great concentration.

Related Idioms

• "Concentration is the key": Success depends on the ability to focus.
  • In chess, concentration is the key.
• "A test of concentration": An activity that challenges one's ability to focus.
  • The intricate task was a real test of concentration.

Noun

1. great and constant diligence and attention
2. bringing together military forces
3. complete attention; intense mental effort
4. increase in density
5. strengthening the concentration (as of a solute in a mixture) by removing diluting material
6. the spatial property of being crowded together
7. the strength of a solution; number of molecules of a substance in a given volume