Used other than figuratively or idiomatically: see ground, bass. / (music) A constantly repeated bassline or harmonic pattern in a piece.

(idiomatic) The practice or characteristic of carefully gathering information; a state or mindset of attentiveness.

Alternative form of ground-effect machine

Synonym of hovercraft / Synonym of ground-effect vehicle

(idiomatic) gain ground; make progress.

(nautical) A local tax paid by a ship for the ground or space it occupies while in port.

plural of groundage

Alternative form of breeding-ground

In a grounded or firmly established manner.

(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