Esplanade
Esplanade , noun
[French esplanade, Sp. esplanada, explanada, compare Italian spianata; from Sp. explanar to level, Latin explanare to flatten or spread out. See Explain.]
1.
(a) (Fortification) A clear space between a citadel and the nearest houses of the town.
(b)
(Fortification) The glacis of the counterscarp, or the slope of the parapet of the covered way toward the country. — Campbell (Mil. Dict. )
2.
(Horticulture) A grass plat; a lawn. — Simmonds
3.
Any clear, level space used for public walks or drives; esp., a terrace by the seaside.