identify vs observe

identify

verb
  • To have a strong affinity with; to feel oneself to be modelled on or connected to. 

  • To disclose the identity of someone. 

  • To equate or make the same; to unite or combine into one. 

  • To claim an identity; to describe oneself as a member of a group; to assert the use of a particular term to describe oneself. 

  • To establish the identity of someone or something. 

  • To associate oneself with some group; to feel, or believe one feels, the same way. 

  • To establish the taxonomic classification of an organism. 

observe

verb
  • To notice or view, especially carefully or with attention to detail. 

  • To take note of and celebrate (a holiday or similar occurrence); to follow (a type of time or calendar reckoning). 

  • To comment on something; to make an observation. 

  • To follow or obey the custom, practice, or rules (especially of a religion). 

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