52 entries under concentrate topic. ×

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guard(verb, note, attend, heed)
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have charge of(verb, expression, idiom, note, attend)
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keep an eye on(verb, expression, idiom, note, attend)
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keep your mind on(verb, expression, idiom, focus)
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look(verb, note, attend, heed)
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make certain(verb, expression, note, attend)
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oversee(verb, note, attend, heed)
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perceive(verb, get, keep, see, note)
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superintend(verb, note, attend, heed)
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supervise(verb, note, attend, heed)
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tend(verb, note, attend, heed)
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think about(verb, expression, focus, listen)
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APASmart Define. (2015). hearken thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/hearken/thesaurus/synonyms
ChicagoSmart Define. 2015. "hearken thesaurus" https://smartdefine.org/hearken/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, hearken thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/hearken/thesaurus/synonyms>.
MLASmart Define. "hearken thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/hearken/thesaurus/synonyms>