At almost 18 months we are at the point where we are saying or trying to say words. Take her to the park and mom taught her to sit before going down the slide. She has mastered the art of the slide at this point but has to remind herself to sit each time.
Nothing like being in a public space with other kids and parents as your child shouts sit but doesn’t actually come out as sit.
This is one of the parts of parenting I didn’t give much thought too but also not losing sleep over it because we know what she is trying to say. If others think she is saying something else so be it.