Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

  • Word of the Day

    shaI st@r

    a person, usu. a lawyer, who uses underhanded, unethical methods.
    That shyster accepted her fee for his services but did almost nothing for her.

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  • Vocabulary of the Day

    neI seI @r

    a person who refuses, denies, or opposes, esp. because of cynicism or pessimism.
    They went ahead with their ambitious plan despite the arguments of the naysayers.

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pronunciation: rae shə nael
part of speech: noun
definition 1
. a fundamental reason for doing or being; basis.
example: The attack on the naval base provided the rationale for going to war.
definition 2
. an argument, statement, or sequence of logical steps amounting to an explanation or justification.
example: Is there a rationale for this law?

Collocations: Words that frequently occur in combination with rationale


VERB + a/the rationale: provide ~, offer ~, present ~, explain ~

rationale + PREPOSITION: ~ for, ~ behind

Usage Note: The use of “rationale for” is 15 times more common in American English texts than “rationale behind,” and is usually the best choice.