Simple past tense and past participle of stand out.
Wiktionary
Stood-out Sentence Examples
His turquoise eyes stood out against his caramel- colored Oriental features.
Dark eyes stood out in an unnaturally pale face.
I stood out for my own opinion alone.
It was a warm late afternoon as I stood out on the sidewalk and looked up at the six massive columns towering above another busy and impressive train station.
She stood out of his way, barely able to care for a child and at a loss as to what to do with a boy on the verge of becoming a teenager.
