expectation expectation /ˌɛkspɛkˈteɪʃən/

noun

1. () Belief about (or mental picture of) the future  ( prospect , expectation , outlook )
   belief about (or mental picture of) the future
   
2. () Anticipating with confidence of fulfillment  ( anticipation , expectation )
   anticipating with confidence of fulfillment
     The team had high expectations for the upcoming match.
   The team had high expectations for the upcoming match.
   
   
3. (statistics) the sum of the values of a random variable divided by the number of values  ( arithmetic mean , expectation , expected value , first moment )
   (statistics) the sum of the values of a random variable divided by the number of values
   
4. The feeling that something is about to happen  ( expectation )
   the feeling that something is about to happen