Yeah, “Sun” and “Star that acts like our sun” are technically both correct a according to many dictionaries including the Oxford English Dictionary, and Dictionary.com. However the latter also recognizes “Goblinmode” as a word. As incorrect phrases become common place they are eventually accepted, which is what happened in the case of the Sun. We have named many stars, ours not disclosed. We named our star “The Sun”, just as we named the largest known Star “UY Scuti”. At first calling stars Suns would have been the same as calling them Scutis, but since it has became more widely used and accepted it has become correct according to some reputable sources.