capital vs hub

capital

noun
  • The uppermost part of a column. 

  • A city designated as a legislative seat by the government or some other authority, often the city in which the government is located; otherwise the most important city within a country or a subdivision of it. 

  • Money and wealth. The means to acquire goods and services, especially in a non-barter system. 

  • Already-produced durable goods available for use as a factor of production, such as steam shovels (equipment) and office buildings (structures). 

  • The most important city in the field specified. 

  • An uppercase letter. 

  • Knowledge; awareness; proficiency. 

  • The chief or most important thing. 

adj
  • Of prime importance. 

  • Of or relating to the head. 

  • Punishable by, or involving punishment by, death. 

  • used to emphasise greatness or absoluteness 

  • Chief, in a political sense, as being the seat of the general government of a state or nation. 

  • Uppercase. 

hub

noun
  • The central part, usually cylindrical, of a wheel; the nave. 

  • A rough protuberance or projecting obstruction. 

  • A point where many routes meet and traffic is distributed, dispensed, or diverted. 

  • A goal or mark at which quoits, etc., are thrown. 

  • A computer networking device connecting several Ethernet ports. See switch. 

  • A central facility providing a range of related services, such as a medical hub or an educational hub. 

  • A stake with a nail in it, used to mark a temporary point. 

  • A hardened, engraved steel punch for impressing a device upon a die, used in coining, etc. 

  • A screw hob. 

  • A block for scotching a wheel. 

  • An area in a video game from which individual levels are accessed. 

  • A male weasel; a buck; a dog; a jack. 

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