hello vs salute

hello

verb
  • To greet with "hello". 

noun
  • "Hello!" or an equivalent greeting. 

intj
  • A greeting used when answering the telephone. 

  • A call for response if it is not clear if anyone is present or listening, or if a telephone conversation may have been disconnected. 

  • An expression of puzzlement or discovery. 

  • Used sarcastically to imply that the person addressed or referred to has done something the speaker or writer considers to be foolish. 

  • A greeting (salutation) said when meeting someone or acknowledging someone’s arrival or presence. 

salute

verb
  • To address, as with expressions of kind wishes and courtesy; to greet; to hail. 

  • To act in thanks, honor, or tribute; to thank or extend gratitude; to praise. 

  • To make a gesture in honor of (someone or something). 

  • to wave, to acknowledge an acquaintance. 

  • To promote the welfare and safety of; to benefit; to gratify. 

noun
  • A discharge of cannon or similar arms, as a mark of honour or respect. 

  • An utterance or gesture expressing greeting or honor towards someone, now especially a formal, non-verbal gesture made with the arms or hands in any of various specific positions. 

  • A kiss, offered in salutation. 

  • A pyrotechnic device primarily designed to produce a loud bang. 

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