present participle of ground

An annual festival held in Canada and the USA on February 2 in which the arrival time of the spring season is predicted by whether or not a certain groundhog can see its shadow.

(informal) A situation in which events appear to be repeating themselves in a cyclical fashion.

(informal) To live out a situation in which events appear to be repeating themselves in a cyclical fashion.

Of a person: having extensive knowledge of a subject. / Of an argument, etc.: based on good judgment and solid reasoning.

(nautical, surfing) A broad undulation of the open ocean, often as the result of a distant disturbance. / (by extension) A broadly-based shifting of public opinion.

Any member of the order Carcharhiniformes, the largest order of sharks with over 270 species. / A Greenland shark, Somniosus microcephalus.

The spined loach (Cobitis taenia), weather loach ( Misgurnus fossilis), or other member of the loaches. / The ringed plover, Charadrius hiaticula.

(idiomatic) The situation in reality as opposed to in the abstract. / (literally) Some aspects of the situation in a particular location.

Situated on the ground floor