Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun line_of_defense

2 senses of line of defense

Sense 1
line of defense, line of defence -- (any organization whose responsibility it is to defend against something; "police are the major line of defense against crime")
       => organization, organisation -- (a group of people who work together)

Sense 2
line of defense, line of defence -- (defensive structure consisting of a barrier that can be employed for defense against attack)
       => defensive structure, defense, defence -- (a structure used to defend against attack; "the artillery battered down the defenses")