evergreen vs transient

evergreen

noun
  • A shrub or tree that does not shed its leaves or needles seasonally. 

  • A conifer tree. 

  • A news story that can be published or broadcast at any time. 

verb
  • To extend the term of a patent beyond the normal legal limit, usually through repeated small modifications. 

  • To set the repayment rate of a loan at or below the interest rate, so low that the principal will never be repaid. 

adj
  • Being a clause which causes an automatic renewal of a contract unless action is taken. 

  • Of a document, a piece of software, or a dataset, being continually up-to-date (as opposed to being published at regular intervals and outdated in the meantime) 

  • Of plants, especially trees, that do not shed their leaves seasonally. 

  • Suitable for transmission at any time; not urgent or time-dependent. 

transient

noun
  • A relatively loud, non-repeating signal in an audio waveform that occurs very quickly, such as the attack of a snare drum. 

  • A homeless person. 

  • homestay 

  • A transient phenomenon, especially an electric current; a very brief surge. 

  • A module that generally remains in memory only for a short time. 

  • Something that is transient. 

  • A person who passes through a place for a short time; a traveller; a migrant worker. 

adj
  • Intermediate. 

  • Occasional; isolated; one-off 

  • having a positive probability of being left and never being visited again. 

  • Passing or disappearing with time; transitory. 

  • Decaying with time, especially exponentially. 

  • Operating beyond itself; having an external effect. 

  • Passing through; passing from one person to another. 

  • Remaining for only a brief time. 

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