convergence

Short definition from Wiktionary

Noun

1. 1
   The act of moving toward union or uniformity.
2. 2
   A meeting place.
3. 3
   The intersection of three electron beams for red, green and blue onto a single pixel in a CRT.
4. 4
   The process or property of approaching some limiting value; typically of an infinite series.
5. 5
   The coordinated focusing of the eyes, especially at short range.
6. 6
   The evolution of similar structures or traits in unrelated species in similar environments; convergent evolution.
7. 7
   The hypothesis that poorer economies' per capita incomes tend to grow faster than richer economies.
8. 8
   The merging of distinct technologies, industries, or devices into a unified whole.
9. 9
   A zone where two prevailing wind flows meet and interact, resulting in distinctive weather conditions.