juvenile
juvenile person
bairn
bambino
buster
changeling
child prodigy
foster child
foster-child
fosterling
imp
infant prodigy
kiddy
kindergartener
kindergartner
monkey
orphan
peanut
picaninny
piccaninny
pickaninny
poster child
preschooler
rapscallion
rascal
scalawag
scallywag
scamp
silly
sprog
street child
toddler
tot
urchin
waif
wonder child
yearling
criada
match
stsadm
tostart