4
kitten(noun, animal, creature, fauna, being)
3
liveborn infant
3
stillborn infant
2
SGA infant
2
low-birth-weight baby
2
low-birth-weight infant
2
postmature infant
2
preemie
2
premature baby
2
premature infant
2
premie
2
preterm baby
2
preterm infant
2
small-for-gestational-age infant
2
term infant
1
baby
1
calf
1
cub
1
foal
1
foundling
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APASmart Define. (2016). newborn thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/newborn/thesaurus/narrower
ChicagoSmart Define. 2016. "newborn thesaurus" https://smartdefine.org/newborn/thesaurus/narrower (accessed September 21, 2026).
HarvardSmart Define 2016, newborn thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/newborn/thesaurus/narrower>.
MLASmart Define. "newborn thesaurus" 30 March 2016. Web. 21 September 2026. <https://smartdefine.org/newborn/thesaurus/narrower>