候補【こうほ】
candidate, contender, prospect, pick, choice, list, candidacy, candidature, nomination
補助【ほじょ】
assistance, support, help, aid, subsidy, supplement, subvention, grant-in-aid, spotting (in weight training)
補償【ほしょう】
compensation, reparation
立候補【りっこうほ】
candidacy, standing as a candidate, bidding (to host an event, e.g. the Olympics)
補佐【ほさ】
aid, help, assistance, assistant, counselor, counsellor, adviser, advisor
補給【ほきゅう】
supply, supplying, replenishment
補強【ほきょう】
reinforcement, strengthening
補正【ほせい】
correction, revision, compensation (e.g. to a pendulum)
補欠【ほけつ】
filling a vacancy, supplementation, substitute, deputy, alternate, spare
補充【ほじゅう】
replenishment, supplementation, supplement, replacement, refilling
補足【ほそく】
supplement, complement
補う【おぎなう】
to supplement, to make up for, to compensate for, to cover (a shortage, loss, etc.), to fill (e.g. a vacancy)