Defense

n.resilient, kindprofessional

What it means

Protection offered against harm, attack, loss, or unfair challenge.

Reach for it when naming organized protection of a person, place, right, or principle

Their defense of the public footpath kept safe access open to everyone.

everyday
protection
when the broad act of keeping someone or something safe is central
not when Protection does not imply an active response to a particular attack or challenge.
professional
advocacy
when public argument protects a right, group, or cause
not when Advocacy promotes a position but may occur without any direct threat.
professional
safeguard
when a measure prevents foreseeable harm or loss
not when Safeguard usually names one preventive measure, not the whole organized defense.
professional
security
when systems and precautions maintain continuing safety
not when Security describes a condition or function and may sound institutional rather than supportive.
formal
guardianship
when ongoing responsibility for another's welfare deserves emphasis
not when Guardianship implies custody or a formal duty and does not fit defending an idea in debate.
formal
resistance
when opposing pressure or attack is the key action
not when Resistance can continue without successfully protecting the thing at risk.
literary
shield
when a person or barrier stands between something vulnerable and harm
not when Shield suggests covering or interception, unlike an argument made for a principle.

strong defense
A strong defense of the wetland combined legal action with careful field evidence.
in defense of
Neighbors spoke in defense of the librarian who had followed the published policy.
legal defense
The legal defense focused on the tenant's documented repair requests.
defense against harm
Clear ventilation standards provide a defense against preventable harm.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.