Any of several standard sized joints, made from ground glass, used to connect laboratory glassware without leaks.

(US, military) A communications unit and their equipment; most often in reference to satellite communications.

(idiomatic) A position or point of view which is ethically superior or more reputable, in comparison to others which are under consideration.

plural of moral high ground

plural of ground mobile force

present participle of break new ground

Alternative form of ground-effect machine

Synonym of hovercraft / Synonym of ground-effect vehicle

(aviation, nautical) Synonym of ekranoplan An aircraft that utilizes aerodynamic ground effect to attain level flight near the surface of water. / (nautical) Synonym of ground-effect machine

(idiomatic, baseball, humorous) A weakly hit ground ball that barely evades the infielders.