| 補い | replenishment, supplement, reparation |
| 外交官補 | probationary diplomat |
| 警部補 | assistant inspector |
| 欠陥を補う | to make up for a fault |
| 欠を補う | to bridge a gap, to supply a lack |
| 候補者を立てる | to put up a candidate |
| 書記補 | assistant clerk |
| 不足を補う | to make up a shortfall, to cover a shortage, to compensate for a shortage, to fill a gap |
| 補強筋 | reinforcement bar |
| 補弦 | supplementary chord |
| 分散補償量計算シート | dispersion compensation calculation sheet |
| 補佐役 | assistant, adjunct, lieutenant |
| 損失補填 | compensation for a loss |
| 補給線 | supply line |
| 補強証拠 | corroboration, supporting evidence |
| 補佐官 | aide |
| 補助員 | assistant, helper |
| 補助線 | additional line |
| 補足説明 | supplementary explanation |
| 優勝候補 | favorite (top choice) for the championship (favourite), best bet for the title |
| 立候補者 | candidate (for) |
| 補助人 | limited guardian |
| 補助参加人 | auxiliary intervenor (in a lawsuit) |
| 被補助人 | person subject to a limited guardianship |
| 補助参加 | auxiliary intervention (in a lawsuit) |
| 補集合 | complementary set, complement |
| 遺族補償 | compensation to the bereaved family |
| 医療補助者 | paramedic |
| 左心補助循環装置 | left ventricular assist device, LVAD |
| 女性候補 | female candidate |
| 生殖補助技術 | assisted reproductive technology, ART |
| 大統領候補 | presidential candidate |
| 副大統領候補 | candidate for vice-president, running mate (US) |
| 補完医学 | complementary medicine |
| 補筆 | retouch, correction, improvement |
| 補助輪 | training wheels |
| 国庫補助 | government subsidy, state aid, state assistance |
| 有力候補 | major contender, strong (leading) candidate, front runner |
| 目的格補語 | objective complement, noun or adjective following and modifing the direct object |
| 補論 | addendum |
| 検索候補 | search results |
| 補作 | adding something to or altering a finished work of art, something added or altered in this manner |
| 大統領補佐官 | presidential aide |
| 補助定理 | lemma |
| 補選 | bye-election, by-election |
| 増補改訂 | revising (and supplementing) |
| 増補改訂版 | enlarged and revised edition |
| ホルモン補充療法 | hormone replacement therapy |
| 重複立候補 | simultaneously running for a seat in a single-member constituency and a seat in a proportionally representated constituency |
| 直線補間 | linear interpolation, straight-line interpolation |
| 刺客候補 | candidate for assassination |