v.
 (past and past part. thought)
   - have a particular opinion, belief, or idea about someone or something.
- use one's mind actively to form connected ideas about someone or something. ▸have a particular mental attitude. ▸
(think of/about)
 take into account or consideration. ▸
(think of/about)
 consider the possibility or advantages of. ▸
(think of)
 call to mind. 
- 
(think of)
 have a specified opinion of.
n.
 informal an act of thinking.
Phrase
  
    - have 
(got)
 another think coming
 informal used to express disagreement.
- think aloud
 express one's thoughts as they occur.
- think better of
 decide not to do (something) after reconsideration.
- think nothing of
 consider (an activity others regard as odd, wrong, or difficult) as straightforward or normal.
- think twice
 consider a course of action carefully before embarking on it.
 
  Phrase verbal
  
    - think back
 recall a past event or time.
- think on
 dialect & N. Amer. think of or about.
- think something out 
(or through)
 consider something in all its aspects before taking action.
- think something over
 consider something carefully.
- think something up
 informal invent or devise something.
 
  Derivative
  
    - thinkable adj.
- thinker n.
 
  Etymology
  OE thencan, of Gmc origin.