What do you call a person who pretends?

What do you call a person who pretends?

An imposter is a person who pretends to be someone else. An imposter usually seeks some kind of financial gain when he or she assumes another person's identity, but there can be other motivations, like simply the thrill of doing it.

What is a Sophomaniac?

sophomania (uncountable) A delusion of having superior intelligence.

What do u call someone who thinks they know everything?

That person is a hypocrite. know-all | know-it-all (noun British informal) – a person who acts as though he or she knows everything and who dismisses the opinions, comments, or suggestions of others.

What is a word for someone who comes up with ideas?

The most obvious answer is probably inventor: A person who invented a particular process or device or who invents things as an occupation. A pioneer is the one at the forefront of invention, the first to fully conceive of something new to the point that they also make it real or practical ("do it" as you say).