defence, high fort (tower), refuge, Misgab, a place in Moab: — Misgab

“Tower” From Boyd’s Bible Dictionary:

(shot up). Watchtowers, or fortified posts, were frequent on frontiers and exposed places (Gen. 35:2121And Israel journeyed, and spread his tent beyond the tower of Edar. (Genesis 35:21); 2 Chron. 26:1010Also he built towers in the desert, and digged many wells: for he had much cattle, both in the low country, and in the plains: husbandmen also, and vine dressers in the mountains, and in Carmel: for he loved husbandry. (2 Chronicles 26:10)); around vineyards (Isa. 21:5,8,115Prepare the table, watch in the watchtower, eat, drink: arise, ye princes, and anoint the shield. (Isaiah 21:5)
8And he cried, A lion: My lord, I stand continually upon the watchtower in the daytime, and I am set in my ward whole nights: (Isaiah 21:8)
11The burden of Dumah. He calleth to me out of Seir, Watchman, what of the night? Watchman, what of the night? (Isaiah 21:11); Matt. 21:3333Hear another parable: There was a certain householder, which planted a vineyard, and hedged it round about, and digged a winepress in it, and built a tower, and let it out to husbandmen, and went into a far country: (Matthew 21:33)), and for the use of shepherds (Mic. 4:88And thou, O tower of the flock, the strong hold of the daughter of Zion, unto thee shall it come, even the first dominion; the kingdom shall come to the daughter of Jerusalem. (Micah 4:8)). “Tower of Shechem” (Judg. 9:4747And it was told Abimelech, that all the men of the tower of Shechem were gathered together. (Judges 9:47)), evidently a citadel or stronghold. Tower of Babel [BABEL]. “Tower of Siloam,” possibly an observatory (Luke 13:44Or those eighteen, upon whom the tower in Siloam fell, and slew them, think ye that they were sinners above all men that dwelt in Jerusalem? (Luke 13:4)).

“Fortress” From Concise Bible Dictionary:

The terms “fortress,” “stronghold,” and “castle” mostly refer to a part of a city that was more strongly fortified than by the mere walls. Proverbs 18:1919A brother offended is harder to be won than a strong city: and their contentions are like the bars of a castle. (Proverbs 18:19) speaks of the “bars of a castle.” There was such a place in Jerusalem when the city was taken by David, which was held by the Jebusites (2 Sam. 5:6-76And the king and his men went to Jerusalem unto the Jebusites, the inhabitants of the land: which spake unto David, saying, Except thou take away the blind and the lame, thou shalt not come in hither: thinking, David cannot come in hither. 7Nevertheless David took the strong hold of Zion: the same is the city of David. (2 Samuel 5:6‑7)). The Romans had a “castle” in Jerusalem, to which Paul was carried when he was seized by the Jews (Acts 21:34, 3734And some cried one thing, some another, among the multitude: and when he could not know the certainty for the tumult, he commanded him to be carried into the castle. (Acts 21:34)
37And as Paul was to be led into the castle, he said unto the chief captain, May I speak unto thee? Who said, Canst thou speak Greek? (Acts 21:37)). This may have been the same that was called ANTONIA, a fortress built by Herod the Great, adjoining the temple, as described by Josephus: Wars, v. 5. 8. The Psalmist often calls Jehovah his rock and fortress (Psa. 18:22The Lord is my rock, and my fortress, and my deliverer; my God, my strength, in whom I will trust; my buckler, and the horn of my salvation, and my high tower. (Psalm 18:2); Psa. 31:33For thou art my rock and my fortress; therefore for thy name's sake lead me, and guide me. (Psalm 31:3); Psa. 71:33Be thou my strong habitation, whereunto I may continually resort: thou hast given commandment to save me; for thou art my rock and my fortress. (Psalm 71:3); Psa. 91:22I will say of the Lord, He is my refuge and my fortress: my God; in him will I trust. (Psalm 91:2)).
 
A fortress on the Red Sea.

“Misgab” From Concise Bible Dictionary:

Place in Moab denounced by the prophet (Jer. 48:11Against Moab thus saith the Lord of hosts, the God of Israel; Woe unto Nebo! for it is spoiled: Kiriathaim is confounded and taken: Misgab is confounded and dismayed. (Jeremiah 48:1)). It reads “high place” in the margin. Without the article the word is translated “defense,” “high fort,” “refuge,” and so forth.

“Tower” From Concise Bible Dictionary:

Strong’s Dictionary of Hebrew Words:

Number:
4869 (find all occurrences in KJV Bible)
Transliteration:
misgab
Phonic:
mis-gawb’
Meaning:
from 7682; properly, a cliff (or other lofty or inaccessible place); abstractly, altitude; figuratively, a refuge
KJV Usage:
defence, high fort (tower), refuge, Misgab, a place in Moab:--Misgab