English Lexicon

Rule-out

/ˈruːl.aʊt/
nounverbCEFR B2 (Upper)Top #8500 frequency
Full Thesaurus

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The process or act of eliminating a possibility, diagnosis, or suspect from consideration.

    "The initial blood tests allowed for the quick rule-out of severe infections."
As verb
  1. 1

    To exclude, eliminate, or prevent something from being a possibility.

    "Doctors performed an MRI to rule out any structural damage to the brain."

Thesaurus & Semantic Spectrum

Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the phrasal verb 'rule out', combining the Middle English noun 'rule' (from Old French and Latin regula) and the Old English adverb 'ūt'. Originally used in general reasoning to mean 'to exclude or dismiss from consideration', it transitioned in the 20th century into medical and investigative terminology as a standard diagnostic procedure.

Quick Vocabulary Retention Check

Which of the following is the closest synonym for "Rule-out"?

Thesaurus & Synonyms Graph

Explore Nuanced Synonyms for "Rule-out"

Discover exact matches, context-specific alternatives, and antonyms with intensity ratings in the VocabDictionary Thesaurus.

View "Rule-out" Synonym Map