Object word learning can be based on infant-related factors such as their manual actions and socio-linguistic factors such as parental input. Specific input for spatial features (i.e., size, shape, features of objects) can be related to object word comprehension in early vocabulary development. In a longitudinal study, we investigated whether fine motor abilities at 14 months and parental input for spatial features at 19 months predicted object word comprehension at 25 months. Twenty-seven ...