concentration

Meanings

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

Synonyms

• density
• denseness
• tightness
• compactness
• engrossment
• absorption
• immersion
• assiduity
• assiduousness

concentration is not valid in Words With Friends