autoblock vs stopper

autoblock

noun
  • A technique used in rappelling and ascending, with a friction hitch around the climbing rope. 

  • (An) automatic blocking (inhibition of a feature etc.). 

verb
  • To automatically block. 

  • To use the autoblock technique. 

stopper

noun
  • A short rope for making something fast. 

  • Any of several trees of the genus Eugenia, found in Florida and the West Indies. 

  • A bung or cork. 

  • In the commodity futures market, someone who is long (owns) a futures contract and is demanding delivery because they want to take possession of the deliverable commodity. 

  • A type of knot at the end of a rope, to prevent it from unravelling. 

  • Goalkeeper. 

  • A train that calls at all or almost all stations between its origin and destination, including very small ones. 

  • A playspot where water flows back on itself, creating a retentive feature. 

verb
  • To close a container by using a stopper. 

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