holster vs jacket

holster

verb
  • To put something in a holster. 

noun
  • A belt with loops or slots for carrying small tools or other equipment. 

  • A case for carrying a tool, particularly a gun, safely and accessibly. 

jacket

verb
  • To enclose or encase in a jacket or other covering. 

  • To confine (someone) to a straitjacket. 

noun
  • In ordnance, a strengthening band surrounding and reinforcing the tube in which the charge is fired. 

  • A piece of clothing worn on the upper body outside a shirt or blouse, often waist length to thigh length. 

  • A police record. 

  • A vest(US); a waistcoat (UK) 

  • The tough outer skin of a baked potato. 

  • A piece of a person's suit, beside trousers and, sometimes, waistcoat; coat (US) 

  • A protective or insulating cover for an object (e.g. a book, hot water tank, bullet.) 

  • A bastard child, in particular one whose father is unaware that they are not the child’s biological father. 

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