As with any penetrative weapon, a dart is seen as strength, control and capability. In a spiritual sense it also suggests focus.
Psychological / emotional perspective: Since it requires expertise and practice to throw darts successfully, in dreams playing darts also suggests discipline and concentration. It is thought that the game arose in the middle ages when bored soldiers took to hurling arrows at the upturned covers of wine barrels, perhaps seeing who could come closest to the cork bung.
The shortened form of arrow became the dart, and a slice of tree trunk the target.
Material aspects: Darts can symbolize harsh words deliberately intended to hurt or a way of bringing something to our notice which needs understanding.
Gives gender - specific: In a woman’s dream a dart may be seen as a direct approach from the masculine or perhaps her own attitude to achievement. In a man’s dream it is more likely to be seen as a recreational pastime, or his ability to get straight to the point.