luck vs rand

luck

noun
  • The results of a random number generator. 

  • A superstitious feeling that brings fortune or success. 

  • Success. 

  • Something that happens to someone by chance, a chance occurrence, especially a favourable one. 

verb
  • To find something through good fortune; used with into, on, onto or upon. 

rand

noun
  • A random number. 

  • A rocky slope, especially the area over a river valley; specifically, the Rand 

  • A single rod woven in and out of the stakes. 

  • A strip of leather used to fit the heels of a shoe. 

  • A border, edge or rim. 

  • The currency of South Africa, divided into 100 cents. 

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