toast vs zwieback

toast

noun
  • Toasted bread. 

  • Something that will be no more; something subject to impending destruction, harm or injury. 

  • A proposed salutation (e.g. to say "cheers") while drinking alcohol. 

  • Extemporaneous narrative poem or rap. 

  • A transient, informational unclickable pop-up overlay, less interactive than a snackbar. 

  • A person, group, or notable object to which a salutation with alcohol is made; a person or group held in similar esteem. 

verb
  • To perform extemporaneous narrative poem or rap. 

  • To lightly cook by browning via direct exposure to a fire or other heat source. 

  • To grill, lightly cook by browning specifically under a grill or in a toaster 

  • To warm thoroughly. 

  • To engage in a salutation and/or accompanying raising of glasses while drinking alcohol in honor of someone or something. 

zwieback

noun
  • A usually sweetened bread enriched with eggs that is baked and then sliced and toasted until dry and crisp; considered easy to digest and therefore given to the ill and used as a teething food for toddlers. 

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