The paper deals with the notions of grounding and of existential dependence. It is shown that cases of existential dependence seem to be systematically correlated to cases of grounding and hence the question is raised what sort of tie might hold the two notions together so as to account for the observed correlation. The paper focusses on three possible ties between grounding and existential dependence: identity (as suggested in Jonathan Schaffer’s works), definition (as suggested by Fabrice Correia and Benjamin Schnieder), and grounding (as suggested by Kathrin Koslicki and Francesco Orilia). A case for the definitional tie is made.