Their research shows a 'link' between high cholesterol and an increased risk of heart attacks. [=shows that high cholesterol causes an increased risk of heart attacks]
Your raise 'is linked to' your job performance. [=your raise is related to your job performance; the size of your raise is related to how well you do your job]
The elderly couple 'linked arms' [=kept their bent arms hooked together at the elbow] as they walked down the street.
(..) I saw a video on the internet-- You saw the video on the Internet. - Well, then the case is closed. - Well, no. If you watch the video-- Maybe send you a link? It looks like he's trying to help. On the Internet he's being made out to look like a hero. No, no. I'm not saying he's a hero. (..)2012 The Amazing Spider-Man