college, copy, double, fatlings, next, second (order), twice as much

Boyd’s Bible Dictionary:

(collected). That part of Jerusalem north of the old city (2 Kings 22:14).

Concise Bible Dictionary:

The Hebrew word signifies “second part,” as in the margin of 2 Kings 22:14 and 2 Chronicles 34:22. It may refer to a part of the city where there was a school. The Rabbis derive it from “to teach”; hence “the school” of the prophets.

Strong’s Dictionary of Hebrew Words:

Transliteration:
mishneh
Phonic:
mish-neh’
Meaning:
from 8138; properly, a repetition, i.e. a duplicate (copy of a document), or a double (in amount); by implication, a second (in order, rank, age, quality or location)
KJV Usage:
college, copy, double, fatlings, next, second (order), twice as much