Google Sheets multiple search and replace from a list

Question

I am looking for a solution to search for certain strings in a Google Sheet and, when found, replace them with another string from a list in another sheet.

For bette

Answer 1

An improvement on JPV's answer, which is orders of magnitude faster and works with arbitrary query and replacement strings:

=ArrayFormula(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(A1:A, List!A1, List!B1), List!A2, List!B2), List!A3, List!B3))

Using this format, a 15,000 cell spreadsheet with an 85-length replacement list will update in just a few seconds. Simply assemble the formula string using your scripting language of choice and you're good to go!