Definition (full): to go forth, to be expelled, desolate, to lay waste, to quarrel
Strong's Exhaustive Concordance
A primitive root; properly, to go forth, i.e. (by implication) to be expelled, and (consequently) desolate; causatively, to lay waste; also (specifically), to quarrel -- be laid waste, runinous, strive (together).
KJV: And when he went out the second day, behold, two men of the Hebrews strove together: and he said to him that did the wrong, Wherefore smitest thou thy fellow?
NASB: He went out the next day, and behold, two Hebrews were fighting with each other; and he said to the offender, "Why are you striking your companion?"
KJV: If men strive, and hurt a woman with child, so that her fruit depart from her, and yet no mischief follow: he shall be surely punished, according as the woman's husband will lay upon him; and he shall pay as the judges determine.
NASB: "If men struggle with each other and strike a woman with child so that she gives birth prematurely, yet there is no injury, he shall surely be fined as the woman's husband may demand of him, and he shall pay as the judges decide.
KJV: And the son of an Israelitish woman, whose father was an Egyptian, went out among the children of Israel: and this son of the Israelitish woman and a man of Israel strove together in the camp;
NASB: Now the son of an Israelite woman, whose father was an Egyptian, went out among the sons of Israel; and the Israelite woman's son and a man of Israel struggled with each other in the camp.
KJV: And the sons of Eliab; Nemuel, and Dathan, and Abiram. This is that Dathan and Abiram, which were famous in the congregation, who strove against Moses and against Aaron in the company of Korah, when they strove against the LORD:
NASB: The sons of Eliab: Nemuel and Dathan and Abiram. These are the Dathan and Abiram who were called by the congregation, who contended against Moses and against Aaron in the company of Korah, when they contended against the LORD,