head-on vs personally

head-on

adv
  • With direct confrontation. 

  • With the front of a vehicle. 

noun
  • A collision from the front. 

adj
  • Of a collision, from the front or in the direction of motion. 

  • Direct, abrupt, blunt or unequivocal; not prevaricating. 

personally

adv
  • In person. 

  • I'm really annoyed with her, personally. 

  • As a person. 

  • In a personal manner. 

  • Concerning oneself. 

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