hundred thousand is a noun and adjective meaning "the cardinal number that is the fifth power of ten". It carries 2 recorded senses.
the cardinal number that is the fifth power of ten
(in Roman numerals, C written with a macron over it) denoting a quantity consisting of 100,000 items or units
Definitions, synonyms and semantic relations for hundred thousand come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.