pillar vs tower

pillar

noun
  • Something resembling such a structure. 

  • A portable ornamental column, formerly carried before a cardinal, as emblematic of his support to the church. 

  • A large post, often used as supporting architecture. 

  • The centre of the volta, ring, or manege ground, around which a horse turns. 

  • An essential part of something that provides support. 

  • The body from the hips over the core to the shoulders. 

verb
  • To provide with pillars or added strength as if from pillars. 

tower

noun
  • A similarly framed structure with a platform or enclosed area on top, used as a lookout for spotting fires, plane crashes, fugitives, etc. 

  • The sixteenth trump or Major Arcana card in many Tarot decks, usually deemed an ill omen. 

  • A water tower. 

  • A strong refuge; a defence. 

  • The nineteenth Lenormand card, representing structure, bureaucracy, stability and loneliness. 

  • A very tall iron-framed structure, usually painted red and white, on which microwave, radio, satellite, or other communication antennas are installed; mast. 

  • A control tower. 

  • Any very tall building or structure; skyscraper. 

  • An interlocking tower. 

  • A tall fashionable headdress worn in the time of King William III and Queen Anne. 

  • One who tows. 

  • An item of various kinds, such as a computer case, that is higher than it is wide. 

verb
  • To be high or lofty; to soar. 

  • To be very tall. 

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