1. be noticeable, attract attention, be remarkable
my clothes/hair/abilities make me stand out from other people
The phrasal verb 'to stand out' can mean 'to project or rise from a surface'. It also means to be easily noticeable or apparent. If something 'stands out', it is easy to see or is better or more significant than other things or information around it. As a noun, 'a standout' is something of exceptional quality or somebody with exceptional ability. You can also use this as an adjective to say 'a standout approach to the problem', for example. 'Stand out' is similar in meaning to 'notable', 'exceptional' and 'noteworthy'.