The plural of “octopus” is not, I was reminded at a recent family gathering, “octopi”.

I’ve written before about how consulting the Dictionary app in my laptop’s “dock”
has become a slight addiction. While I don’t mull over things to look up merely to give
it some exercise, the fact that it’s so handy and that it searches not only The New Oxford English Dictionary but The Oxford American Writer’s Thesaurus, Apple’s tech dictionary, and Wikipedia (at least if you’re connected to the Internet) means that I do look up more than I need to — and I practically itch to get at it when a question that it could answer pops into my head away from the computer.