When it comes to expressing the idea of standing out or being noticeable, there are many alternative phrases that you can use instead of "stick (sth) out." Some commonly used synonyms include "stand out," "catch the eye," "attract attention," "be prominent," "be conspicuous," "be distinctive," "be noticeable," "be remarkable," "be outstanding," and "be impressive." Depending on the context of your sentence and the tone you wish to convey, you can choose from various synonyms to add diversity and richness to your language. So, the next time you want to describe something that stands out, try picking a new synonym to expand your vocabulary and enliven your writing.