bulwark

definition: a protective structure of stone or concrete

example:

speech part: noun

synonyms: mole

definition: a fencelike structure around a deck (usually plural)

example:

speech part: noun

synonyms:

definition: an embankment built around a space for defensive purposes

example:

speech part: noun

synonyms: rampart wall

definition: to defend with a bulwark

example: I bulwarked our position.

speech part: verb

synonyms:

bulwark is explained and pronounced