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.
(..) - Yes? Go away. Did Leonard tell you to say that? No, I thought of it all by myself. Huh? Can't be a coincidence. There must be some causal link I'm missing. Go away. Curiouser and curiouser. - Is he here? - If he were, I wouldn't be. (..)2008 TvShow: The Big Bang Theory Title: The Jerusalem Duality Season: 1 Episode 12