delicacies?

Recently I got an email message from Manhattan id card with the following description of their promotion.

Taste a wide variety of delicacies

Get ready for a year of culinary celebrations! MANHATTAN credit card excites your taste-buds with year-round delicious offers, bringing you captivating dining experiences from over 700 hot spots in town. A wide variety of dishes is ready for your savory pleasure! To know more, visit www.manhattancard.com.

After reading the passage, I looked up 5 words in the dictionary. And I just wonder how can it be in that little paragraph these words are so strange to me. Why... Why they came to me in my inbox? And why I have never come across them? Even though I found the explanations of these words, I'm quite sure that I'm not using them in my paragraph. So what is the meaning of their existence in the message, and also the existence to me?...