Wikidiffcom vs Introduce - What's the difference?

As a verb introduce is

(of people) to cause (someone) to be acquainted (with someone else).

Wikidiffcom has no English definition. It may be misspelled.

(introduc)

(of people) To cause (someone) to be acquainted (with someone else).

To make (something or someone) known by formal announcement or recommendation.

To add (something) to a system, a mixture, or a container.

To bring (something) into practice.

* {{quote-magazine, date=2013-10-05, volume=409, issue=8856, magazine=(The Economist)

, title= The widening gyre , passage=First introduced in Letchworth Garden City in 1909, the roundabout