充填[juuten] fill (up)
装填[souten] charge
填める[uzumeru] to cover
填める[hameru] to insert
填め込む[hamekomu] to inlay

填る[hamaru] to fit
補填[hoten] compensating
填補[tenpo] supplementation
填り役[hamariyaku] well-suited role
填隙[tengeki] caulking

基数の補数[kisuunohosuu] radix complement
兼補[kenpo] carrying on a second line of work
候補[kouho] candidate
候補者[kouhosha] candidate
候補生[kouhosei] cadet

候補地[kouhochi] proposed site
公認候補[kouninkouho] official candidate
公認候補者[kouninkouhosha] official candidate
主格補語[shukakuhogo] subject complement
修補[shuuho] repairing