Can звезда also be an astrononical term, or is it just like five pointed shape that you see in the sky or perhaps the symbol itself?
It is an astronomical term first and foremost. Звёзды are the small bright objects you can see in the sky at nights. You do not see the five-pointed shape, by the way (can you see stars where you live?) Due to the large distance between our solar system and even the nearest stars, we always see stars as small dots (how small is, essentially, limited by the resolution of the equipment). This, and the apparent lack of stellar parallax was once a strong argument against the Earth orbitin the Sun. It was only later when the better optics let us see that some stars are slightly "moving" as the seasons change and that stars are not as large as we see them.
Звезда also means a symbol (for example, ☆, ✡, ✧ or ✶) and a type of celebrity.
Thank you for the explanation. I have seen stars before and I know that they're just dots haha :) (I don't know why I said the five-pointed shape thing)