grob

Grob is a German word that functions as an adjective and, in some contexts, as an adverb. As an adjective, grob means rough, coarse, or crude, referring to texture (a grobes Material) or to behavior or treatment (jemand grob behandeln). As an adverb, it can mean roughly or approximately, often used with quantities or estimates (grob 50 Personen; grob geschätzt). In legal and formal language, grob can appear in compounds such as grobe Fahrlässigkeit (gross negligence) or grobe Verletzung (gross breach).

As a proper noun, Grob or GROB may refer to GROB-Werke GmbH & Co. KG, a German engineering and manufacturing company. Based in Mindelheim, Bavaria, the firm is known for designing and producing aircraft and related precision systems. The company operates globally, supplying training aircraft to aviation schools as well as components for other industrial sectors. The name is commonly shortened to GROB in official branding and on corporate materials.

Grob is also a surname of German origin and may appear in various personal names or place names. In cultural or historical contexts, individuals bearing the name Grob are encountered in fields such as science, arts, or sports, though not limited to that list.

The word is generally used in German-language contexts and is less common as an English term, except in references to the brand GROB.