| term | pronunciation | English |
|---|
| 幼児 | ようじ | infant, baby, child |
| 育児 | いくじ | childcare, nursing, upbringing |
| 一卵性双生児 | いちらんせいそうせいじ | identical twins |
| 乳児 | にゅうじ | infant, suckling baby |
| 乳幼児 | にゅうようじ | infants, babies |
| 健康児 | けんこうじ | healthy child |
| 児 | じ | child |
| 児孫 | じそん | children and grandchildren, descendants |
| 児童 | じどう | children, juvenile |
| 児童福祉 | じどうふくし | child welfare |
| 双生児 | そうせいじ | twins |
| 女児 | じょじ | baby girl, primary schoolgirl |
| 孤児 | こじ, みなしご | orphan |
| 孤児院 | こじいん | orphanage |
| 小児 | しょうに | young child, infant |
| 未熟児 | みじゅくじ | premature baby |
| 男児 | だんじ | boy, son, man |
| 稚児 | ちご | (festivity) page; baby; boys kept by pederasts |
| 稚児隼 | ちごはやぶさ, チゴハヤブサ | northern hobby (species of falcon, Falco subbuteo) |
| 肢体不自由児 | したいふじゆうじ | handicapped child |
| 胎児 | たいじ | embryo, fetus, foetus |
| 遺児 | いじ | orphan |
| 鹿児島県 | かごしまけん | Kagoshima prefecture (Kyuushuu) |
| 麒麟児 | きりんじ | child prodigy, wonder child |