safe vs sound

safe

adj
  • Properly secured. 

  • Great, cool, awesome, respectable; a term of approbation, often as interjection. 

  • Lenient, usually describing a teacher that is easy-going. 

  • In a location that renders it difficult to hit with the cue ball. 

  • Reliable; trusty. 

  • When a batter successfully reaches first base, or when a baserunner successfully advances to the next base or returns to the base he last occupied; not out. 

  • Not in danger; out of harm's reach. 

  • Cautious. 

  • Providing protection from danger; providing shelter. 

  • Free from risk. 

  • Of a programming language, type-safe or more generally offering well-defined behavior despite programming errors. 

  • Not susceptible to a specified source of harm. 

noun
  • A condom. 

  • A box, usually made of metal, in which valuables can be locked for safekeeping. 

verb
  • To make something safe. 

sound

adj
  • Complete, solid, or secure. 

  • Heavy; laid on with force. 

  • Founded in law; legal; valid; not defective. 

  • Having the property of soundness. 

  • Healthy. 

  • Quiet and deep. 

  • Good; acceptable; decent. 

noun
  • Earshot, distance within which a certain noise may be heard. 

  • A distinctive style and sonority of a particular musician, orchestra, &. 

  • A long narrow inlet, or a strait between the mainland and an island; also, a strait connecting two seas, or connecting a sea or lake with the ocean. 

  • A long, thin probe for sounding or dilating body cavities or canals such as the urethra; a sonde. 

  • A segment as a part of spoken language, the smallest unit of spoken language, a speech sound. 

  • Noise without meaning; empty noise. 

  • A vibration capable of causing such sensations. 

  • A sensation perceived by the ear caused by the vibration of air or some other medium. 

  • The air bladder of a fish. 

adv
  • Soundly. 

verb
  • To ascertain, or try to ascertain, the thoughts, motives, and purposes of (a person); to examine; to try; to test; to probe. 

  • Dive downwards, used of a whale. 

  • To be conveyed in sound; to be spread or published; to convey intelligence by sound. 

  • Test; ascertain the depth of water with a sounding line or other device. 

  • To convey an impression by one's sound. 

  • To cause to produce a sound. 

  • To examine with the instrument called a sound or sonde, or by auscultation or percussion. 

  • To pronounce. 

  • To arise or to be recognizable as arising in or from a particular area of law, or as likely to result in a particular kind of legal remedy. 

  • To produce a sound. 

intj
  • Yes; used to show agreement or understanding, generally without much enthusiasm. 

How often have the words safe and sound occurred in a corpus of books? (source: Google Ngram Viewer )