MOT vs guru

MOT

noun
  • magnetooptical trap 

  • An aggregate which meets the Ministry of Transport standard as a compact subbase. 

  • management of technology. 

  • Ministry of Transport test; an annual test of roadworthiness for British cars over three years old. 

  • microwave oven transformer 

  • A member of the tribe; i.e. a Jew 

guru

noun
  • In Indian traditions,it means a knowlegable teacher who guides his shishya(disciple/lit. seeker of [of knowledge or truth]) 

  • An influential advisor or mentor. 

  • A Hindu or Sikh spiritual teacher. 

verb
  • To act as a guru; to give wise advice 

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