The legendary knot tied to a pole near the temple of Zeus in Gordium.
Any intricate and complex problem having a simple solution.
An obstruction of cables and spars across a river or harbour entrance.
The condition of being deeply involved and intricated (with politics, a group, another person, etc.)
The condition, or an instance, of being romantically or sexually involved with another person; an affair.
The act of entangling.
An obstruction placed in front or on the flank of a fortification, to impede an enemy's approach.