libretto vs volume

libretto

noun
  • A book containing such a text. 

  • The text of a dramatic musical work, such as an opera. 

volume

noun
  • A bound book. 

  • An accessible storage area with a single file system, typically resident on a single partition of a hard disk. 

  • Strength of sound; loudness. 

  • Quantity. 

  • A rounded mass or convolution. 

  • The total of weight worked by a muscle in one training session, the weight of every single repetition summed up. 

  • A great amount (of meaning) about something. 

  • A three-dimensional measure of space that comprises a length, a width and a height. It is measured in units of cubic centimeters in metric, cubic inches or cubic feet in English measurement. 

  • A single book of a publication issued in multi-book format, such as an encyclopedia. 

  • The total supply of money in circulation or, less frequently, total amount of credit extended, within a specified national market or worldwide. 

  • The issues of a periodical over a period of one year. 

verb
  • To be conveyed through the air, waft. 

  • To cause to move through the air, waft. 

  • To swell. 

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