say it: KLOH-suhst
closest is an adverb meaning "(superlative of `near' or `close') within the shortest distance". It is pronounced /ˈkloʊsəst/ — KLOH-suhst. It carries one recorded sense.
Definitions, synonyms and semantic relations for closest 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.