simple past tense and past participle of grue

(geology) An accumulation of angular, coarse-grained fragments (particles of sand and gravel) resulting from the chemical and mechanical weathering of crystalline rocks.

(astronomy) A spring constellation of the southern sky, said to resemble a crane. It contains the star Alnair and lies south of the constellation Piscis Austrinis.

present participle of grue

The Main Intelligence Directorate — the Soviet and then the Russian military intelligence agency.