| term | pronunciation | English |
|---|
| 直接 | ちょくせつ | directly |
| 直す | なおす | to repair |
| 直ちに | ただちに | at once |
| 率直 | そっちょく | frank, candid, straightforward, openhearted |
| 直る | なおる | to be fixed, to be repaired |
| 正直 | しょうじき | honesty, integrity, frankness |
| 垂直 | すいちょく | vertical, perpendicular |
| 卒直 | そっちょく | frankness, candour, openheartedness |
| 直に | じかに | immediately, readily, directly |
| 直 | じき | earnestly, immediately, exactly |
| 直後 | ちょくご | immediately following |
| 直前 | ちょくぜん | just before |
| 直流 | ちょくりゅう | direct current |
| 直径 | ちょっけい | diameter |
| 真っ直ぐ | まっすぐ | straight (ahead), direct, upright |
| 素直 | すなお | obedient, meek, docile, unaffected |
| 直線 | ちょくせん | straight line |
| 見直す | みなおす | to look again, to get a better opinion of |
| 直角 | ちょっかく | right angle |
| 直通 | ちょくつう | direct communication |
| 亮直 | りょうちょく | rightfulness |
| 悪癖が直る | あくへきがなおる | to get over a bad habit |
| 愚直 | ぐちょく | simple honesty, tactless frankness |
| 朴直 | ぼくちょく | simplicity, honesty, naivete |
| 直属 | ちょくぞく | direct control, direct supervision |
| 直披 | じきひ, ちょくひ | personal, confidential (letter) |
| 直接比較 | ちょくせつひかく | direct comparison |
| 直接購入 | ちょくせつこうにゅう | direct purchase |
| 直球 | ちょくきゅう, ちょっきゅう | straight ball (pitch); straight, frank |
| 直立茎 | ちょくりつけい | erect stem |
| 直系 | ちょっけい | direct descent, direct line |
| 直腸 | ちょくちょう | rectum |
| 直轄 | ちょっかつ | direct control |
| 直轄地 | ちょっかつち | area under direct control (of the shogun) |
| 直轄植民地 | ちょっかつしょくみんち | crown colony |
| 直面 | ちょくめん | confrontation |
| 矯め直す | ためなおす | to set up again, to correct, to cure |
| 硬直 | こうちょく | stiffening, rigidity, rigor, stiffness, ossification, petrification |
| 見直し | みなおし | review, reconsideration, revision |