Doll/dɑːl/ Definition 1 of 4Pro Tip 1/3Children's Play Used to describe toys resembling humans, often a child's first pretend friend. Her doll goes everywhere with her. Pro Tip 2/3Collectible Item Can refer to valuable, collectible items, not just playthings. He collects vintage dolls from the 1950s. Pro Tip 3/3Role Models Sometimes represent societal roles or careers to help children learn about the world. This astronaut doll can inspire little girls.