bead vs pearl

bead

verb
  • To cause beads to form on (something). 

  • To apply beads to. 

  • To form into a bead. 

noun
  • A narrow molding with semicircular section. 

  • A bubble, in spirits. 

  • Each in a string of small balls making up the rosary or paternoster. 

  • Knowledge sufficient to direct one's activities to a purpose. 

  • A small, round ball at the end of a barrel of a gun used for aiming. 

  • A small drop of water or other liquid. 

  • A small, round object with a hole to allow it to be threaded on a cord or wire, particularly for decorative purposes. 

  • A rigid edge of a tire that mounts it on a wheel; tire bead. 

  • Various small, round solid objects. 

pearl

verb
  • To cause to resemble pearls in lustre or iridescence. 

  • To cause to resemble pearls in shape; to make into small round grains. 

  • To resemble pearl or pearls. 

  • To sink the nose of one's surfboard into the water, often on takeoff. 

  • To set or adorn with pearls, or with mother-of-pearl. 

  • Of the nose of the surfboard: to sink in this manner. 

  • To hunt for pearls 

noun
  • Something precious. 

  • A light-colored tern. 

  • A fish allied to the turbot; the brill. 

  • A whitish speck or film on the eye. 

  • A capsule of gelatin or similar substance containing liquid for e.g. medicinal application. 

  • Nacre, or mother-of-pearl. 

  • One of the circle of tubercles which form the bur on a deer's antler. 

  • A shelly concretion, usually rounded, and having a brilliant luster, with varying tints, found in the mantle, or between the mantle and shell, of certain bivalve mollusks, especially in the pearl oysters and river mussels, and sometimes in certain univalves. It is usually due to a secretion of shelly substance around some irritating foreign particle. Its substance is the same as nacre, or mother-of-pearl. Round lustrous pearls are used in jewellery. 

  • A fringe or border. 

  • A valuable little nugget of information; especially, an aphorism or tip that is operationally useful for decision-making. 

  • The clitoris. 

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