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English Lexicon

Altruist

/ˈæl.tru.ɪst/
nounCEFR C1 (Advanced)Top #15400 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A person who unselfishly concerns themselves with the well-being and welfare of others.

    "The anonymous donor proved to be a true altruist by funding the community hospital."
  2. 2

    In biology and sociobiology, an organism that exhibits behavior beneficial to other organisms at its own expense.

    "Worker bees act as biological altruists, sacrificing their own reproductive success for the colony."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the French word 'altruiste', coined in the 19th century by philosopher Auguste Comte from the Italian 'altrui' (others), which stems from the Latin 'alter' (other). It entered the English lexicon to denote a person dedicated to the unselfish concern for the welfare of others.

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