Foretaste
/ˈfɔːrteɪst/
Definition 1 of 1
Pro Tip 1/3Future Experience
Refers to sampling or experiencing a part of something that will fully occur later. 
Getting the job offer email gave me a foretaste of the new career ahead.
Pro Tip 2/3Emotional Impact
Often used to express anticipation and excitement about what is to come. 
The movie trailer gave viewers a foretaste of the thrilling adventure to be expected.
Pro Tip 3/3Small Quantity
Implies that only a small part or aspect is experienced in advance, not the whole. 
The free sample was a delicious foretaste of the gourmet food sold at the deli.