canister vs tub

canister

noun
  • A cylindrical or rectangular container usually of lightweight metal, plastic, or laminated pasteboard used for holding a dry product (as tea, crackers, flour, matches). 

  • A projectile component containing colored or screening smoke or riot control agent composition. 

  • A component of canister-type protective masks containing a mechanical filter and chemical filling to filter, neutralize and/or absorb toxic chemical, biological and radiological agents. 

  • Part of a windmill that connects the sails to the windshaft. 

  • Any of various cylindrical metal receptacles usually with a removable close-fitting top. 

  • A special short-range antipersonnel projectile consisting of a casing of light metal, loaded with preformed submissiles such as flechettes or steel balls. The casing is designed to open just beyond the muzzle of the weapon, dispersing the submissiles. 

verb
  • To pack into a canister. 

tub

noun
  • A flat-bottomed vessel, of width similar to or greater than its height, used for storing or packing things, or for washing things in. 

  • A slow-moving craft. 

  • A bathtub. 

  • Any structure shaped like a tub, such as a certain old form of pulpit, a short broad boat, etc. 

  • A small cask. 

  • A corpulent or obese person. 

  • The contents or capacity of such a vessel. 

  • Any of various historically designated quantities of goods to be sold by the tub (butter, oysters, etc). 

  • A box or bucket in which coal or ore is sent up a shaft. 

verb
  • To bathe in a tub. 

  • To plant, set, or store in a tub. 

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