To consult is to give or get help or advice. When you don't know the meaning of a word, you consult a dictionary. That's why you're here, right?
People making a big decision will usually consult their family and friends. To consult can also mean a type of professional advice: a consultant is a freelance worker paid to help a business out with something. Consulting is a complicated word that can mean to give or receive advice. When in doubt, find someone you trust to consult.