| Similarity | Rank | |
|---|---|---|
| reciprocity | 0.827 | 37176 |
| Reciprocal | 0.808 | 69186 |
| reciprocation | 0.761 | 94865 |
| mutuality | 0.727 | 80231 |
| mutual | 0.685 | 5140 |
| Reciprocity | 0.674 | 97697 |
| complementarity | 0.673 | 78885 |
| mutually | 0.658 | 12061 |
| reciprocate | 0.643 | 46799 |
| reciprocated | 0.632 | 65615 |
| interdependence | 0.627 | 38968 |
| altruism | 0.619 | 42202 |
| implicit | 0.612 | 17174 |
| relatedness | 0.609 | 84052 |
| cooperation | 0.602 | 4632 |
| correlative | 0.601 | 95227 |
| preferential | 0.600 | 26103 |
| relation | 0.598 | 3653 |
| exchange | 0.598 | 2006 |
| co-operation | 0.595 | 19117 |
| congruence | 0.591 | 78397 |
| linkage | 0.591 | 23940 |
| kinship | 0.586 | 30362 |
| opposite-sex | 0.583 | 97233 |
| exchanges | 0.579 | 9020 |