Dual
The ideal match. Your strengths sit exactly where their blind spots are, and theirs where yours are. The famous Socionics 'perfect fit'.
Identity
Same type. The same type as you. Total mutual understanding — and the same blind spots, doubled.
Activation
The energiser. The dual of your mirror — energising company that winds you up rather than calms you down.
Mirror
The colleague. You share the same interests approached from opposite angles — each of you polishes what the other produces.
Semi-dual
The near miss. Half of duality: your strongest sides fit like duals, but your weak sides collide instead of covering.
Mirage
The pleasant distraction. Relaxing, low-pressure company that quietly de-motivates — lovely to unwind with, hard to get anything done with.
Kindred
The parallel road. You lead with the same strength but use it for different ends — close enough to compare, different enough to disagree.
Business
The easy colleague. Different engines, same working style — easy, businesslike company with little friction and little depth.
Super-ego
The polite stranger. Your values sit on each other's sore spots. Mutual respect from a distance; mutual bruising up close.
Quasi-identity
The false twin. You look like the same kind of person and never quite understand each other — parallel monologues, not dialogue.
Extinguishment
The photo negative. The same interests with the attitude inverted — fascinating debates that somehow dim both of you over time.
Conflict
The worst match. Your natural strength presses continuously on their most sensitive weakness, and theirs on yours. The hardest relation in the socion.
Benefaction (asymmetric)
The one-way charm. Asymmetric: the beneficiary is captivated by the benefactor, who enjoys the admiration but can't quite see what the fuss is about.
Supervision (asymmetric)
The uneven gaze. Asymmetric: the supervisor's strongest function presses on the supervisee's weakest point — corrective one way, uncomfortable the other.
Fourteen relations are mutual; Benefit and Supervision run one way, which is why they get a direction arrow in the checker. For the full theory — how the relations arise from type structure — see Your Social World Explained, and to put your own type to work, Socion matches you by exactly these relations.