| Dojo | Hall or room in which Judo is practiced |
| Tatami | Judo mat |
| Judogi | Judo suit |
| Obi | Judo belt |
| Judoka | A person who practices Judo |
| Tori | Attacker (person performing a judo technique) |
| Uke | Defender (person receiving a judo technique) |
| Ukemi | Break falls |
| Mae Mawari Ukemi | Forward rolling breakfall |
| Yoko Ukemi | Side breakfall |
| Ushiro Ukemi | Backward breakfall |
| Mae Ukemi | Front break fall |
| Tachi-waza | Standing techniques |
| Ne-waza | Groundwork techniques |
| Shime-waza | Strangle or choke techniques |
| Kansetsu-waza | Arm lock techniques |
| Kaesi-waza | Counter techniques |
| Tokui-waza | Favourite technique |
| Jigotai | Defence posture |
| Shizintai | Natural posture |
| Kuzushi | Breaking of balance prior to throw |
| Randori | Free practice |
| Uchi-komi | Turn in for a throw without throwing |
| Kaka | Throw |
| Shiai | Contest |
| Kata | Formal display |
| Joseki | Place in Dojo for seniors or VIP’s |
| Kiyotsuke | (come to) attention |
| Sensei | teacher / instructor |
| Za-rei | Kneeling bow |