arrays of strings English alphabet, could be > 100,

Then a hash is your best bet.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In reply to Re^3: Fastest way to merge (and de-dup) two large arrays? by BrowserUk
in thread Fastest way to merge (and de-dup) two large arrays? by technojosh

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