1wantdesireUfuna imali? — Do you want cash?
2needUfuna abahlobo abangaphi ukuze udlale lo mdlalo? — How many friends do you need to play this game?
3look forsearchseekUfuna bani? — Who are you looking for?
In English, you say that you 'want' something if you would like to have it, but if you 'need' something, it's important or essential to have it. For example, you might 'want' new jeans, but you 'need' food and water.