What does "ground forces" mean?

The military units operating on the ground, including tanks, soldiers, artillery, etc.

What is a synonym for "ground forces"?

Common synonyms include: armed force, armies, army, array, forces, host.

noun

noun ·Rare ·Advanced level

Noun

1
The military units operating on the ground, including tanks, soldiers, artillery, etc. plural, plural-only
2
a permanent organization of the military land forces of a nation or state wordnet