noun
crucifix
Refers specifically to a representation of Christ on the cross, as an object of devotion or art.
教会の祭壇の上に大きな十字架像が飾られていた。
A large crucifix was displayed above the church altar.
十字架 means 'cross' in general, while 十字架像 specifically means a crucifix with a figure of Christ.
Compound of 十字架 (cross) and 像 (image, statue).