To Supplement, To Compensate For
transitive verb, godan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means supplement so the verb vocab version is to supplement. Note that this word is generally considered relatively formal in tone.
おぎなう
Oh, gee, now (おぎな) you're going to supplement it? That would have been helpful earlier. Might help to say "oh gee now" with a ぎ sound instead of "ji" sound out loud, too. This is a tricky reading, won't be learned too easily, so think about it a bit now.
もちろん、親からの仕送りだけでは足りなかったので、生活費はアルバイトで補っていました。
Of course, my allowance from my parents wasn't enough, so I worked part-time to supplement my living expenses.
野菜ジュースで、野菜不足を補うことはできるのでしょか。
Can we make up for the lack of vegetables by drinking vegetable juice?
欠員を補うために、ボーリングゲームに参加しました。
To compensate for the empty spot, I joined the bowling game.
人は1日に約2500mlの水分を失います。それを補うためには、食べ物や飲み物から同じ量の水分を取り入れる必要があります。
People lose about 2500 ml of fluids per day. To make up for it, you need to take in the same amount of fluids from food or drinks.