2. Noun. A shiver, a shudder ¹
3. Noun. Any byproduct of a gruesome event, i.e. gore, viscera, entrails, blood and guts. ¹
4. Noun. A fictional predator that dwells in the dark. ¹
5. Adjective. (philosophy) Of an object, green when first observed before a specified time or blue when first observed after that time. ¹
6. Adjective. (linguistics) Green or blue, as a translation from languages such as Welsh that do not distinguish between these hues. ¹
¹ Source: wiktionary.com
Definition of Grue
1. a shudder of fear [n -S]