Which applications use /usr/share/dict/words

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http://unix.stackexchange.com – I have changed the symlink /usr/share/dict/words to point to my own custom dictionary but it doesn't seem to affect anything. Chromium and Abiword neither seem to use this dictionary. Which appilications use words? Do I have to manually configure each application to use it? What is the point of having a system dictionary if applications are going to use their own anyway? (HowTos)