seal vs secure

seal

verb
  • To fasten (something) so that it cannot be opened without visible damage. 

  • To place a seal on (a document). 

  • To confirm or set apart as a second or additional wife. 

  • To guarantee. 

  • To close securely to prevent leakage. 

  • To place in a sealed container. 

  • To prevent people or vehicles from crossing (something). 

  • To tie up animals (especially cattle) in their stalls. 

  • To mark with a stamp, as an evidence of standard exactness, legal size, or merchantable quality. 

  • To form a sacred commitment. 

  • To hunt seals. 

  • To place a notation of one's next move in a sealed envelope to be opened after an adjournment. 

  • To fix, as a piece of iron in a wall, with cement or plaster, etc. 

  • To close by means of a seal. 

  • To fry (meat) at a high temperature to retain the juices. 

noun
  • An impression of such stamp on wax, paper or other material used for sealing. 

  • A bearing representing a creature something like a walrus. 

  • Anything that secures or authenticates. 

  • A tight closure, secure against leakage. 

  • Something which will be visibly damaged if a covering or container is opened, and which may or may not bear an official design. 

  • A chakra. 

  • A design or insignia usually associated with an organization or an official role. 

  • Confirmation or approval, or an indication of this. 

  • A stamp used to impress a design on a soft substance such as wax. 

  • Something designed to prevent liquids or gases from leaking through a joint. 

  • A pinniped (Pinnipedia), particularly an earless seal (true seal) or eared seal. 

secure

verb
  • To make fast; to close or confine effectually; to render incapable of getting loose or escaping. 

  • To get possession of; to make oneself secure of; to acquire certainly. 

  • To make safe; to relieve from apprehensions of, or exposure to, danger; to guard; to protect. 

  • To put beyond hazard of losing or of not receiving; to make certain; to assure; frequently with against or from, or formerly with of. 

adj
  • Free from the danger of theft; safe. 

  • Certain to be achieved or gained; assured. 

  • Free from attack or danger; protected. 

  • Free from the risk of eavesdropping, interception or discovery; secret. 

  • Confident in opinion; not entertaining, or not having reason to entertain, doubt; certain; sure; commonly used with of. 

  • Free from anxiety or doubt; unafraid. 

  • Free from the risk of financial loss; reliable. 

  • Firm and not likely to fail; stable. 

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