What does 補強 mean?
補強 is a Japanese noun meaning “reinforcement” in English. It is written as 補強 in kanji, ほきょう in hiragana, and hokyou in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
コンクリートは中に鋼鉄の棒を入れる事で補強される。
Concrete can be reinforced by putting steel bars inside it.