safe and sound Definition

safe
adj

1. Free from danger or harm.

Thesaurus: secure, protected, guarded, housed, screened, invulnerable, impregnable, shielded; Antonym: endangered.
2. Unharmed.
3. Giving protection from danger or harm; secure.

Example: a safe place
4. Not dangerous or harmful

Example: Is it safe to go out?
Thesaurus: harmless, tame, innocent, innocuous; Antonym: dangerous, risky.
5. Involving no risk of loss; assured.

Example: a safe bet
6. Said of a friend, companion, etc: reliable or trustworthy.

Thesaurus: reliable, trustworthy, dependable, competent, sound, proven, loyal, faithful.
7. Cautious.

Example: better safe than sorry

noun

1. A sturdily constructed cabinet, usually made of metal, in which money and valuables can be locked away.

Thesaurus: vault, strongbox, coffer, chest, repository, safe-deposit box.

Derivative: safely
adverb

Derivative: safeness
noun

Idiom: be on the safe side (err on the safe side)

To be doubly cautious; to choose the safer alternative.

Idiom: play safe

See under play.

Idiom: safe and sound

Secure and unharmed.
Example: They returned safe and sound from their trip

Idiom: safe as houses

colloq
Extremely safe and secure.

Etymology: 15c: from French sauf, from Latin salvus.