| 正塩 | normal salt |
| 正多面体 | regular polyhedron |
| 襟を正す | to straighten oneself, to adopt a more serious attitude |
| 姿勢を正す | to straighten oneself |
| 正三位 | senior grade of the third court rank |
| 新正月 | January (according to the new calendar) |
| 正安息香酸 | orthobenzoic acid |
| 正教授 | full professor |
| 正義の名に於て | in the name of justice |
| 正邪の区別 | discrimination between right and wrong |
| 正と続 | first and second series |
| 正と反 | thesis and antithesis |
| 正比 | direct ratio |
| 正副議長 | chairman and vice-chairman |
| 正副二通 | original and duplicate |
| 大正琴 | Nagoya harp, Taisho koto, Japanese harp with two to five strings |
| 大正の代 | Taisho era |
正しい行い 正しいおこない | conducting oneself properly, right conduct, doing the right thing |
| 不正の臭い | smack of evil |
| 不正を矯める | to redress injustice |
本を正す 元を正す | to go to the bottom of an affair, to inquire into the origin |
| 正規化 | normalization (e.g. in floating-point representation system), normalisation, standardization, standardisation |
| 軌道修正 | course correction, trajectory change, orbital adjustment |
| 修正液 | correction fluid, correcting fluid, white out, Wite-out, Liquid Paper, Tipp-Ex |
| 修正申告 | (filing) revised (income tax) return |
| 正解者 | person who gives the right (correct) answer |
| 正常位 | normal position (posture), missionary position |
| 正答率 | percentage of correct answers |
| 定数是正 | reapportionment (of Diet seats) |
| 不正融資 | fraudulent loans |
| 法改正 | change in the law, legal reform |
ギリシャ正教 ギリシア正教 | Greek Orthodox Church |
ギリシャ正教会 ギリシア正教会 | Greek Orthodox Church |
| 海面更正 | reduction of mean sea level |
| 正規直交系 | normalized orthogonal system, normalised orthogonal system |
| 正規直交化 | ortho-normalization, ortho-normalisation |
| 改正法 | revised law |
| 業績下方修正 | profit warning |
| 更正施設 | correctional facility |
| 視力矯正手術 | vision correcting surgery |
| 政治資金規正法 | Political Funds Control Law |
| 配分的正義 | distributive justice, justitia distributiva |
| 不正スタート | false start |
| 不正会計 | accounting fraud, irregular accounting |
| 不正会計処理 | improper bookkeeping |
| 不正競争防止法 | Unfair Competition Prevention Law |
| 正の数 | positive number, positive value |
正気づく 正気付く | to become conscious |
| 正相 | in phase, in-phase, co-phase |
| 色校正 | checking the colors on a colored proof (colour) |
| 正論理 | positive logic |