line of defence

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. any organization whose responsibility it is to defend against something
- police are the major line of defense against crime
• Syn:
line of defense
• Hypernyms:
organization, organisation
2. defensive structure consisting of a barrier that can be employed for defense against attack
• Syn:
line of defense
• Hypernyms:
defensive structure, defense, defence
• Hyponyms:
abattis, abatis