One example is that everybody needs food, water, clothes and shelter to survive so those are just the basics
another ex is that everybody needs a friend or friends in life to help them go through things, physically, emotionally and through the good and bad, and you need friends to talk to as well like sharing common interests.
a mark or character used as a conventional representation of an object, function, or process, e.g., the letter or letters standing for a chemical element or a character in musical notation.
