of the same body

Concise Bible Dictionary:

See CHURCH.

Strong’s Dictionary of Greek Words:

Greek:
σύσσωμος
Transliteration:
sussomos
Phonic:
soos’-so-mos
Meaning:
from 4862 and 4983; of a joint body, i.e. (figuratively) a fellow-member of the Christian community
KJV Usage:
of the same body