Billie Lourd honors grandmother Debbie Reynolds on her death anniversary with throwback photo

Billie Lourd paid tribute to her grandmother, Debbie Reynolds, on the five-year anniversary of her death.

In the photo, Fisher and Reynolds are crouching down in front of a young Lourd outside. They both gazing at Lourd with smiles.

Lourd captioned the photo with a series of emojis that seemingly spell out the word "Abadaba," known as Lourd's nickname for her grandmother. 

Reynolds died at the age of 84 on Dec. 28, 2016, just one day after her daughter (and Lourd's mother) Fisher died at the age of 60 after suffering a heart attack.