grass snake is a noun meaning "harmless European snake with a bright yellow collar; common in England". It carries 3 recorded senses.
harmless European snake with a bright yellow collar; common in England
any of numerous nonvenomous longitudinally-striped viviparous North American and Central American snakes
either of two North American chiefly insectivorous snakes that are green in color
Definitions, synonyms and semantic relations for grass snake come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.