Easton's Bible Dictionary (1897)
A bowl or deep dish. The silver vessels given by the heads of the tribes for the services of the tabernacle are so named (Num. 7:13, etc.). The “charger” in which the Baptist’s head was presented was a platter or flat wooden trencher (Matt. 14:8, 11; Mark 6:25, 28). The chargers of gold and silver of Ezra 1:9 were probably basins for receiving the blood of sacrifices.
Smith's Bible Dictionary (1863)
a shallow vessel for receiving water or blood, also for presenting offerings of fine flour with oil. (Numbers 7:79) The daughter of Herodias brought the head of St. John the Baptist in a charger, (Matthew 14:8) probably a trencher or platter.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
CHAR'GER (old English, from the French charger), that on which a thing is laid, a dish. Num 7:13; Ezr 1:9; Matt 14:8, Rev 1:11. A shallow bowl or basin used for receiving the blood at the preparation of the sacrifices. The charger in which Herod's daughter brought the head of John Baptist was probably a trencher or platter.