Definition: The usually round, red or yellow, edible fruit of a small tree of the rose family. (Juli signing at age 4;10).
Phonological study: The earliest video (or one of the earliest videos) captured the baby 'Juli' signing APPLE at 12 months old. The handshape "A" is typically one of the first handshape primes -- one of five unmarked handshapes.
At age 4;10 as seen in the video above, she uses the tip of the finger that touches the cheek instead of the knuckle of the finger, even though, her finger is bent.