broad vs surd

broad

adj
  • Free; unrestrained; unconfined. 

  • General rather than specific. 

  • Extended, in the sense of diffused; open; clear; full. 

  • Comprehensive; liberal; enlarged. 

  • Having a large measure of any thing or quality; unlimited; unrestrained. 

  • Unsubtle; obvious. 

  • Plain; evident. 

  • Strongly regional. 

  • Wide in extent or scope. 

  • Velarized, i.e. not palatalized. 

noun
  • A British gold coin worth 20 shillings, issued by the Commonwealth of England in 1656. 

  • A shallow lake, one of a number of bodies of water in eastern Norfolk and Suffolk. 

  • A lathe tool for turning down the insides and bottoms of cylinders. 

  • A kind of floodlight. 

surd

adj
  • unvoiced; voiceless 

  • Involving surds, or irrational numbers; not capable of being expressed in rational numbers. 

noun
  • An irrational number, especially one expressed using the √ symbol. 

  • A voiceless consonant. 

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