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say it: roof
roof is a noun and verb meaning "a protective covering that covers or forms the top of a building". It carries 5 recorded senses.
a protective covering that covers or forms the top of a building
protective covering on top of a motor vehicle
an upper limit on what is allowed
“he put a ceiling on the number of women who worked for him”
“there was a roof on salaries”
“they established a cap for prices”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for roof come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.