alan shepard is a noun meaning "astronaut who made the first United States' suborbital rocket-powered flight in 1961 (1923-1998)". It carries one recorded sense.
astronaut who made the first United States' suborbital rocket-powered flight in 1961 (1923-1998)
Definitions, synonyms and semantic relations for alan shepard come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.