Closely or inseparably connected or associated with(adjective)
WordNet. Princeton University. 2010.
Use "bound up" in a sentence
"This teaching is bound up with the doctrine of the Communion of Saints, and the monuments of the catacombs represent the saints and martyrs as interceding with God for the dead."
"I gazed and gazed at the doll with the silvery-gold hair bound up in a fancy way."
"With a pin, he scarified the skin between his thumb and forefinger, took some pus from the sore of a fellow inmate, applied it to the area, and bound up his hand."