the word "good" has many meanings

January 27: nidus
(I can understand using some little-known words for this, but this is...odd.)

My office is a nidus of inside jokes and obscure information.

February 27: sycophant

Please, let no one ever think me a sycophant; may I always behave with greater dignity than that.

     We're in the midst of the 'anniversary' portion of our year, when things get a little clogged in my memory and it sometimes takes a bit for me to remember to live in the present and not the past. The 22nd is memorable as the day I did something wonderfully out of character, which paid dividends for years to come. The 24th is, four years ago, when I got my first two tattoos. The 25th is, good and bad, when the brave act of the 22nd unfolded in a big way. Also nearing my half-birthday, and the birthday of the guy whose wife accused me (wrongly, as it happens, and in a barely-keeping-it-together fashion) of having an affair with him a couple of years ago. (No, I haven't seen him since then.) (Nor had I seen him for ~15 years before that, for what that's worth.)
     That day is also Johnnie's birthday.
     And next week comes Nick's birthday (the 6th) and my former spouse's (the 7th). No, I don't have all this noted somewhere--it just lives in my head, and pops up when I see these dates at work (stupid street dates [The Cat knows what I'm talking about] and meetings) or make plans in advance with friends. I would love to be able to shut off whatever piece of my brain makes it possible to remember this sort of thing. If anyone can help me do that, I'd be thrilled.

January 28: extremophile

My b.f.f. seems to be turning into a human extremophile since she moved to Alaska. I don't get it--but I've never been there, so maybe it's just something that's got to be experienced.

February 28: eristic

I understand that 'eristic' can serve as either verb or noun; one of my coworkers has the noun definition of this word nailed.

[the title quotation is by G.K. Chesterton, and reads in its entirety: "The word 'good' has many meanings. For example, if a man were to shoot his grandmother at a range of five hundred yards, I should call him a good shot, but not necessarily a good man."]