Boyd’s Bible Dictionary:

(brave). Son of Cush. A renowned hunter, city builder, empire founder in Shinar (Babylonia) (Gen. 10:8-12; 1 Chron. 1:10). Babylon is said to be the “the land of Nimrod (Micah 5:6)

Concise Bible Dictionary:

Son or descendant of Cush, the son of Ham. He was “mighty upon the earth,” and “a mighty hunter,” using force and craft to bring man as well as beasts under his sway. The words “before the Lord” probably signify imperial energy and usurped authority in independence of Jehovah. “The beginning of his kingdom was Babel” with other towns in the land of Shinar. And “out of that land went forth Asshur,” or “he went out to Assyria,” and built Nineveh and other cities. So that Nimrod and his descendants were those who founded both Babylon and Nineveh. Babylonia was also called the land of Nimrod, which shows that the descendants of Ham settled in the East as well as in Egypt in the South. Those in the East afterward gave place in a great measure to the descendants of Shem (Gen. 10:8-11; 1 Chron. 1:10; Mic. 5:6).

Strong’s Dictionary of Hebrew Words:

or Nimrod {nim-rode'}; probably of foreign origin; Nimrod, a son of Cush
KJV Usage:

Jackson’s Dictionary of Scripture Proper Names:

we will rebel

Potts’ Bible Proper Names:

Increase; rebellious; apostate; valiant one:―son of Cush, Gen. 10:8. {Augmentatio}