It sounds to me like they are trying to justify their stupidity by attacking you, and honestly these people sound like right arseholes if there taking shots at you for something so simple.
If they are so insecure that they can't take someone being seen as having greater intelligence then themselves, fuck em. If someone attacked me for using a word they didn't know or correcting them i would never talk to a knob like that again. Plus, if they were REALLY your friends they would understand that your like that and wouldn't try and bend it to hurt you, unless you some how agitate these people to the extent that they would do this, so you may need to look at the frequency in which you do these kinda things because correcting someone every minute can tend to annoy people or doing it everyday may just lead to a build-up of annoyance that can cause these outbursts. That's all my mind can conjure at the moment.
If they are so insecure that they can't take someone being seen as having greater intelligence then themselves, fuck em. If someone attacked me for using a word they didn't know or correcting them i would never talk to a knob like that again. Plus, if they were REALLY your friends they would understand that your like that and wouldn't try and bend it to hurt you, unless you some how agitate these people to the extent that they would do this, so you may need to look at the frequency in which you do these kinda things because correcting someone every minute can tend to annoy people or doing it everyday may just lead to a build-up of annoyance that can cause these outbursts. That's all my mind can conjure at the moment.