say it: STAHR-tuhp
startup is a noun meaning "the act of setting in operation". It carries 2 recorded senses.
the act of starting a new operation or practice
“he opposed the inauguration of fluoridation”
“the startup of the new factory was delayed by strikes”
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 startup 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.