sequence vs source

sequence

noun
  • An ordered list of objects, typically indexed with natural numbers. 

  • A series of shots that depict a single action or style in a film, television show etc. 

  • A series of musical phrases where a theme or melody is repeated, with some change each time, such as in pitch or length (example: opening of Beethoven's Fifth Symphony). 

  • The state of being sequent or following; order of succession. 

  • A musical composition used in some Catholic Masses between the readings. The most famous sequence is the Dies Irae (Day of Wrath) formerly used in funeral services. 

  • A set of things next to each other in a set order; a series 

  • A meld consisting of three or more cards of successive ranks in the same suit, such as the four, five and six of hearts. 

verb
  • to determine the order of things, especially of amino acids in a protein, or of bases in a nucleic acid 

  • to produce (music) with a sequencer 

  • to arrange in an order 

source

verb
  • To obtain or procure: used especially of a business resource. 

  • To find information about (a quotation)'s source (from which it comes): to find a citation for. 

noun
  • A reporter's informant. 

  • Source code. 

  • The name of one terminal of a field effect transistor (FET). 

  • Spring; fountainhead; wellhead; any collection of water on or under the surface of the ground in which a stream originates. 

  • The person, place, or thing from which something (information, goods, etc.) comes or is acquired. 

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