ground level

== English == === Noun === ground level (countable and uncountable, plural ground levels) (often attributive) The level of the ground, the surface of the earth. The ground floor (of a building). Synonym: street level (physics) Ground state, the stationary state of lowest energy of a particle. ==== Translations ==== === References === “ground level”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.