Fold - Vine's Expository Dictionary of New Testament Words
Fold[ 1,,G833, aule ]
first signifies an open courtyard" before a house; then, "an enclosure" in the open, "a sheepfold," John 10:1, John 10:16. In the papyri "the word is extremely common, denoting the court attached to a house" (Moulton and Milligan, Vocab.). The "sheepfold" was usually surrounded by a stone wall, Numbers 32:16, preferably near a well, Exodus 2:16; Psalms 23:2, and often protected by a tower, 2 Chronicles 26:10; Micah 4:8. See COURT, HALL, PALACE.
Note: For the erroneous AV rendering, "fold," of poimne, "a flock," in John 10:16, See FLOCK.