3
cluster(noun, mass, pile, lot, stock)
3
clustering(noun, attention, vision, application, intensification)
3
compacting(noun, attention, vision, application, intensification)
3
concretion(noun, mass, setting, thickness, thickening)
3
congress(noun, group, mass, crowd, association)
3
decoction
3
decrease(noun, decrease)
3
deep thought(noun, expression, thought, consideration, profound)
3
ear(noun, mark, note, regard, notice)
3
energy(noun, force, power, passion, strength)
3
enthrallment(noun, interest, attention, occupation, involvement)
3
herd(noun, gain, group, mass, crowd)
3
horde(noun, gain, group, mass, crowd)
3
intensification(noun, attention, vision, accumulation, application)
3
mind(noun, mark, note, regard, interest)
3
narrowing(noun, attention, vision, application, meditation)
3
need(noun, attention, vision, application, meditation)
3
pondering(noun, study, class, exercise, thought)
3
quintessence
3
reasoning(noun, study, class, exercise, thought)
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APASmart Define. (2016). concentration thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/concentration/thesaurus/synonyms
ChicagoSmart Define. 2016. "concentration thesaurus" https://smartdefine.org/concentration/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, concentration thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/concentration/thesaurus/synonyms>.
MLASmart Define. "concentration thesaurus" 14 March 2016. Web. 22 September 2026. <https://smartdefine.org/concentration/thesaurus/synonyms>