below vs overhead

below

prep
  • Unsuitable to the rank or dignity of; beneath. 

  • Downstage of. 

  • Lower in spatial position than. 

  • Lower than in value, price, rank, concentration, etc. 

  • South of. 

  • Downstream of. 

adv
  • On or to a lower deck, especially as relative to the main deck. 

  • On or to a lower storey. 

  • Later in the same text. 

  • In or to a lower place. 

  • Below zero. 

overhead

adv
  • Above one's head; in the sky. 

adj
  • kicked over one's own head 

  • located above, especially over the head 

noun
  • Data or steps of computation used only to facilitate the computations in the system and not directly related to the actual program code or data being processed. 

  • Any cost or expenditure (monetary, time, effort or otherwise) incurred in a project or activity, which does not directly contribute to its progress or outcome. 

  • Wasted money. 

  • An overhead projector. 

  • A sheet of transparent material with an image used with an overhead projector; an overhead transparency. 

  • The expense of a business not directly assigned to goods or services provided. 

  • The items or classes of expense not directly assigned to goods or services provided. 

  • The ceiling of any enclosed space below decks in a vessel. 

  • The system of overhead wires used to power electric transport, such as streetcars, trains, or buses. 

  • A compartment above the seats for stowing luggage in a passenger aircraft. 

  • An overhead throw. 

  • A smash. 

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