Meaning : The height of the ground on which something stands.
Example :
The base of the tower was below grade.
Synonyms : grade
Meaning : The floor of a building that is at or nearest to the level of the ground around the building.
Synonyms : first floor, ground floor
Ground level ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Ground level ka matlab kya hota hai?