boat vs oiler

boat

noun
  • A vehicle, utensil, or dish somewhat resembling a boat in shape. 

  • A craft used for transportation of goods, fishing, racing, recreational cruising, or military use on or in the water, propelled by oars or outboard motor or inboard motor or by wind. 

  • A full house. 

  • One of two possible conformations of cyclohexane rings (the other being chair), shaped roughly like a boat. 

  • The refugee boats arriving in Australian waters, and by extension, refugees generally. 

verb
  • To travel by boat. 

  • To transport in a boat. 

  • To place in a boat. 

oiler

noun
  • A small (typically thumb-sized) metal container of oil, often containing an integral brush. 

  • An assistant in the engine room of a ship, senior only to a wiper, mainly responsible for keeping machinery lubricated. 

  • One who or that which oils. 

  • An oilskin coat. 

  • A Mexican. 

  • An oil tanker. 

  • An oil well. 

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