Vine's Expository Dictionary of NT Words 
"a fight, strife" (akin to B, No. 3, under Fight is always used in the plural in the NT, and translated "fightings" in 2—Corinthians 7:5; James 4:1; Titus 3:9 , RV (for AV, "strivings"); "strifes in 2—Timothy 2:23 . See Strife.
"fighting against God" (theos, "God," and A, occurs in Acts 5:39 (AV, "to fight"), lit., "God-fighters."
King James Dictionary 
1. Contending in battle striving for victory or conquest. 2. a. Qualified for war fit for battle.
A host of fighting men. 2 Chronicles 26 .
3. Occupied in war being the scene of war as a fighting field.
FIGHTING, n. Contention strife quarrel.
Without were fightings, within were fears. 2 Corinthians 7 .
Webster's Dictionary 
(1): ( p. pr. & vb. n.) of Fight
(2): ( a.) Occupied in war; being the scene of a battle; as, a fighting field.
(3): ( a.) Qualified for war; fit for battle.