head-to-head vs korero

head-to-head

adv

  • Directly, one-to-one. 

  • Facing one another. 

adj

  • Direct, one-to-one. 

korero

noun

  • Among the Māori people, a meeting to discuss something. 

How often have the words head-to-head and korero occurred in a corpus of books? (source: Google Ngram Viewer )