To make secure, strengthen, reinforce.

transitive. To render safe or secure (from attack or danger); to secure. Obsolete.

transitive. To make or keep safe; to secure or protect. Frequently with from or of, specifying a danger. Obsolete.

transitive. To keep safe from danger, harm, or loss; to ensure the safety of; to protect.

To make secure, sure, or safe; to assure, secure.

figurative. To entrench.

transitive. To secure, make safe. Plumbing: see safing, n. 1.

transitive. To render safe; to secure, insure.

transitive. figurative. To establish in a secure or defended position; to protect. Chiefly reflexive. Also intransitive with reflexive meaning.