Definitions of trend:

• noun:   the popular taste at a given time

  Example: "He followed current trends"

• noun:   a general tendency to change (as of opinion)

  Example: "Not openly liberal but that is the trend of the book"

• noun:   general line of orientation

  Example: "The northeastern trend of the coast"

• noun:   a general direction in which something tends to move

  Example: "The trend of the stock market"

• verb:   turn sharply; change direction abruptly
• name:  A surname (very rare: popularity rank in the U.S.: #76982)