greetings to this helpful and informative list i have a small problem that will be certainly trivial for almost everyone reading this, i would appreciate a little help lets say i have a string s = "abcdefg" now i have two lists of strings, one a list of patterns to match, and a list of replacement strings: patterns = ["a","b"] replace = ["Z","Y"] from which my intent is that "a" be replaced by "Z", "b" by "Y" etc now using the replace function from MissingH.Str (which i know is now renamed), i wish to apply replace to s using (pattern[0], replace[0]), (pattern[1], replace[1])...(pattern[N], replace[N]). i am sure there is an elegant way to apply replace to s for all of these argument pairs without composing replace N times myself, but the solution escapes me. thanks in advance for any help you can provide for this trivial issue brad