A defense or safeguard.
A defensive wall or rampart.
A breakwater.
Any means of defence or security.
The planking or plating along the sides of a nautical vessel above her gunwale that reduces the likelihood of seas washing over the gunwales and people being washed overboard.
To fortify something with a wall or rampart.
To provide protection of defense for something.
Something that secures.
Proof of ownership of stocks, bonds or other investment instruments.
Property etc. temporarily relinquished to guarantee repayment of a loan.
Something that secures the fulfillment of an obligation or law.
A guarantee.
The condition of not being threatened, especially physically, psychologically, emotionally, or financially.
An organization or department responsible for providing security by enforcing laws, rules, and regulations as well as maintaining order.
Freedom from apprehension.
A tradeable financial asset, such as a share of stock.ᵂ