Can I say "beneath" instead of "under?" Is there a difference?

Native speaker’s answer
Rebecca
There is a slight difference! "Beneath" means to be directly below something, whereas "under" refers to something just below something else. The difference is the specificity of how below something is. "Under," however, can also mean "beneath." I wouldn't suggest using "beneath" instead of "under" here. If she was directly below and standing right next to the wall of the exit sign, it would work! But since she's a little further off, "under" is less specific than "beneath." Ex: My painting is beneath the light so that you can see it easily. = My painting is under the light so you can see it easily. Ex: I like sitting under the stars and watching them.