| jardineiro | gardener |
| Jardins das Tulherias | Tuileries Palace |
| Jardins do Retiro de Madrid | Parque del Buen Retiro |
| jardins particulares | home garden |
| Jardins suspensos da Babilónia | Hanging Gardens of Babylon |
| Jared Diamond | Jared Diamond |
| Jared Leto | Jared Leto |
| Jared Padalecki | Jared Padalecki |
| Jargon | Jargon |
| Jargon File | Jargon File |
| jargão | speak |
| jargão administrativo | officialese |
| jargãousado por gamers | cant(slang)e |
| Jari Litmanen | Jari Litmanen |
| Jarls | Earl |
| Jarlsberg | Jarlsberg cheese |
| Jarmakhan Tuyakbay | Zharmakhan Tuyakbay |
| Jarno Trulli | Jarno Trulli |
| Jaron Lanier | Jaron Lanier |
| Jarosita | Jarosite |
| Jaroslav Heyrovský | Jaroslav Heyrovský |
| Jaroslav Seifert | Jaroslav Seifert |
| Jarosław Kaczyński | Jarosław Kaczyński |
| jarra | pitcher |
| jarrete | stifle |
| jarreteira | garter |
| jarro | jug |
| Jascha Heifetz | Jascha Heifetz |
| Jaska Raatikainen | Jaska Raatikainen |
| jasmim | jasmine |
| Jasmineiro | Jacques Jasmin |
| Jasminocereus | Jasminocereus |
| Jason Acuña | Jason Acuña |
| Jason Lee | Jason Lee |
| Jason Newsted | Jason Newsted |
| Jason Reso | Jason Reso |
| Jason Tahincioglu | Jason Tahincioglu |
| Jason Voorhees | Jason Voorhees |
| Jason X | Jason X |
| Jason Čulina | Jason Čulina |
| jaspe | jasper |
| Jasper Johns | Jasper Johns |
| Jasper Tudor | Jasper Tudor |
| Jasão | Jason |
| Jat Airways | Jat Airways |
| jatinho | jet |
| jato | jet |
| Jatobá | Jatobá |
| Jatropha | Jatropha |
| Jatropha curcas | Jatropha curcas |
| jaula | cage |
| Jaun | Jaun |
| Java | Java |
| Java Authentication and Authorization Service | Java Authentication and Authorization Service |
| Java Development Kit | Java Development Kit |
| Java Modeling Language | Java Modeling Language |
| Java Runtime Environment | Java Runtime Environment |
| JavaBeans | JavaBean |
| Javac | Javac |
| JavaCC | JavaCC |
| javali | boar |
