Q: constructed languages are real. they were just made up by people instead of developing naturally. sure, constructed languages often don't have that many speakers, but that doesn't make them any less real.
A: "real" can mean different things depending on the situation. for example, valid bank notes vs counterfeit. you might say "is this real" well of course it's real, it's a real piece of paper, but given the context there could be a different implication