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.
(..) Blue Fountain on page one wounded, and on page the car, turning to the south of Pars behind the police outpost provoked an accident on the road. No link has been established. No mentioning of the caliber pistol Nothing. Two different incidents, that's all. They're covering everything. Exactly. (..)1981 To Kill a Cop
(..) about everything. They said you have clinched a deal. They also said that the police hopes to find you in the shortest time. Did the ballistic examination establish a link between the two incidents? - No, it was a witness. - A witness? A young man of good family driving red Monte Carlo. Cognitive. (..)1981 To Kill a Cop