Same word as ok:
A-OK, adequate, admissible, all right, average, big, common, cooking with gas, cool, copacetic, decent, delightful, fair, fairish, goodish, hep, hip, hunky-dory, in the swim, kosher, large, moderate, okay, on the ball, on the beam, passable, peachy keen, pleasant, pleasing, respectable, right on, satisfactory, standard, sufficient, swell, tolerable, trendy, unexceptional, unobjectionable, up to code, up to snuff, welcome
A-OK, adequate, admissible, all right, average, big, common, cooking with gas, cool, copacetic, decent, delightful, fair, fairish, goodish, hep, hip, hunky-dory, in the swim, kosher, large, moderate, okay, on the ball, on the beam, passable, peachy keen, pleasant, pleasing, respectable, right on, satisfactory, standard, sufficient, swell, tolerable, trendy, unexceptional, unobjectionable, up to code, up to snuff, welcome