Graph Rewriting and Transformation (GReAT) is a  Model Transformation Language (MTL) for Model Integrated Computing available in the GME environment. GReAT has a rich pattern specification sublanguage, a graph transformation sublanguage and a high level control-flow sublanguage. It has been designed to address the specific needs of the model transformation area. The GME environment is an example of a Model Driven Engineering (MDE) framework.

Great may refer to:

• Greatness, being superior, majestic, transcendent, or divine
• GReAT, Graph Rewriting and Transformation, a Model Transformation Language
• Great (film), a British animated short about Isambard Kingdom Brunel
• Gang Resistance Education and Training
• Great (supermarket), a supermarket in Hong Kong

Gang Resistance Education And Training, abbreviated G.R.E.A.T., provides a school-based, police officer instructed program that includes classroom instruction and various learning activities, the use of law enforcement officers having several advantages. They have a wide range of experience in recognizing and combatting criminal behaviour, they have the ability to recognize gang members, they are equipped with a referral knowledge, and most importantly can be a positive role model to students.

Grandparents are the parents of a person's own parent, whether that be a father or a mother. Every sexually-reproducing creature who is not a genetic chimera has a maximum of four genetic grandparents, eight genetic great-grandparents, sixteen genetic great-great-grandparents, etc. Rarely, such as in the case of sibling or half-sibling incest, these numbers are lower. In the history of modern humanity, around 30,000 years ago, the number of modern humans who lived to be grandparents began to skyrocket. It is not known for certain what spurred this increase in longevity. But it is believed that a key consequence of three generations being alive together was the facilitation of the passing along of information that prior to that point would have been lost; an example of this important information might have been where to find water in times of drought.

Die Großeltern bzw. die Großmutter und der Großvater sind in der Generationenfolge die Eltern der Eltern eines Kindes, also im Regelfall vier Personen. Diese werden auch Opa und Oma beziehungsweise verniedlichend Omi und Opi genannt. Häufig wird diese Anrede von den Enkelkindern mit dem Wohnort der Großeltern verbunden, z. B. "Oma Haby" oder "Opa Kiel". Im süddeutschen Sprachraum sind auch die Bezeichnungen Omama und Opapa gebräuchlich, im alpinen deutschen Sprachraum auch noch Ahnl und Ähnl.

Les grands-parents d'une personne désignent les parents de ses parents.

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