What's the difference between Programmer, Coder, Engineer, and Developer? Noobs here.

So the other day, an old acquaintance asks me (a noob full stack dev) for advice on what programming langs to languages to learn.

I (like all other noobs eager to help) asked him about his previous programming skills, if any. He says "Yes yes, I did a course on HTML and CSS." To this I ask, what exactly are you looking to do. Back-end development he says.

I am frustrated with people asking me what to learn and how to learn when they are not even willing to do slightest of the work themselves. I am usually very helpful to people, but as a programmer, I would certainly try to do a complete research before I go around asking others.

What do you guys do? How do you handle such questions.