adv. 25B6; adverb
he is really very wealthy : IN (ACTUAL) FACT, actually, in reality, in point of fact, as a matter of fact, in truth, to tell the truth; archaic in sooth.
he really likes her : GENUINELY, truly, honestly; undoubtedly, without a doubt, indubitably, certainly, assuredly, unquestionably; archaic verily.
they were really kind to me : VERY, extremely, thoroughly, decidedly, dreadfully, exceptionally, exceedingly, immensely, tremendously, uncommonly, remarkably, eminently, extraordinarily, most, downright; Scottish unco; N. Amer. quite; informal awfully, terribly, terrifically, fearfully, right, devilishly, ultra, too for words, seriously, majorly; Brit. informal jolly, ever so, dead, well, fair; N. Amer. informal real, mighty, awful, plumb, powerful, way; informal, dated devilish, frightfully; archaic exceeding.
25B6; exclamation They've split up. Really? : IS THAT SO, is that a fact, seriously, well I never (did), go on, you're joking; informal you're kidding, {well, knock/blow me down with a feather}; Brit. informal {well, I'll be blowed}.