covering vs topside

covering

noun
  • That which covers or conceals; a cover; something spread or laid over or wrapped about another. 

  • Action of the verb to cover. 

  • A continuous map onto a topological space X, 𝜋:E→X, such that there exists a discrete space D and for every x∈X an open neighborhood U⊂X, such that 𝜋⁻¹(U)= displaystyle bigsqcup _(d∈D)V_d and 𝜋|_(V_d):V_d→U is a homeomorphism for every d∈D. 

topside

noun
  • The side or part of something that is at the top. 

  • The structure and assembly of modules above the jacket or gravity base sub structure. 

  • The surface of a ship’s hull that is above the water line. 

  • The outer side of a round of beef. 

  • The structure and assembly of modules on the deck of any floating installation. 

adv
  • Abovedeck, such as on the weather deck or bridge. 

adj
  • Abovedeck, such as on the weather deck or bridge. 

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