verb (v)

• enter a particular state(verb.stative)

  Example:
  Laziness set in.
  

  Synonym:
  kick in
  

  source: wordnet30
• blow toward the shore(verb.weather)

  Example:
  That gale could set in on us with the next high tide.
  

  source: wordnet30
• become established(verb.change)

  Example:
  Winter has set in.
  

  source: wordnet30