entanglement

Short definition from Wiktionary

Noun

1. 1
   The act of entangling.
2. 2
   The state or condition of being entangled; intricate and confused involution: The condition of being deeply involved and intricated (with politics, a group, another person, etc.)
3. 3
   The state or condition of being entangled; intricate and confused involution: The condition, or an instance, of being romantically or sexually involved with another person; an affair.
4. 4
   That which entangles; an involvement, a complication; an intricacy; a perplexity: An obstruction placed in front or on the flank of a fortification, to impede an enemy's approach.
5. 5
   That which entangles; an involvement, a complication; an intricacy; a perplexity: An obstruction of cables and spars across a river or harbour entrance.
6. 6
   Ellipsis of quantum entanglement.