I figured it would be obvious by my selection of Standard American English, but I am a native speaker of American English.

Native speakers of Indian English or British English have different vernacular, colloquialisms, etc, which is why I specifically commented on Standard American English.

You are, of course, correct, and those objecting to your use of a word in accord with its primary definition are simply undereducated, and being childish. When I read your comment it came across as you intended, and I was not distracted by irrelevant associations.

> Do you know the number of Indians who are 'native English speakers'

Probably more than the population of the US.

Languages are not static, dictionaries are not made of stone. A word's primary usage can definitely change. Many words are like this: "[to] retard" is one such example where the original definition has been superseded by another definition in general usage. One can walk around with a dictionary and a prescriptivist mindset and tell people their language is "wrong", or one can acknowledge that definitions and usages change over time.

The only time I've ever encountered this usage of public intercourse is in older texts. Certainly no one my age would use that instead of "public discourse".

And that has nothing to do with levels of education or "childishness". One can be highly educated and have a diverse vocabulary while acknowledging the fact that certain usages are more popular than other usages, and they can change over time. Languages are illogical and beautiful in that way.

> Probably more than the population of the US.

Well, maybe not so much, but I assure you, the number is in the millions.