· defensive structure consisting of walls or mounds built around a stronghold to strengthen it
Synonym(s): munition
Hypernym(s): defensive_structure, defense, defence
· the art or science of strengthening defenses
Hypernym(s): art, artistry, prowess
· the addition of an ingredient for the purpose of enrichment (as the addition of alcohol to wine or the addition of vitamins to food)
Hypernym(s): enrichment