(chemistry) In the periodic table of the elements, any of the eight groups (columns) of elements that contain the lightest (and most common) elements.

A group of people who informally support each other over a problem which all members share.

Situated on the ground floor

The floor of a building closest to ground level; what is also known by some American English speakers as the first floor. (US) / (informal) The initial stage of a project.

plural of group specific antigen

The genetic material that codes for the structural protein of a retrovirus

(military, slang) A military soldier whose primary role is infantry or the use of ground-based materiel.

A thick copper bar required in telecommunication room installations to provide a central ground-point for equipment.

A cranky, antisocial puppet character who lives in a garbage can, from the children's television show Sesame Street.

plural of ground proximity warning system