Ever notice there's one letter difference betwen a friend and a fiend?

SLaughter is the best medicine.
–The Dark Night

From Zero to Hero
–The Mask

Had you ever met any of my “friends” you’d soon see, spelling notwithstanding, there’s no difference at all.

That’s a good one!

along the same theme:

assuage
sausage

Description of a D&D paladin: “Starts with L, ends with D, and with awful goo in the middle”

Those aren’t really antonyms, though. ‘Friend’ describes your relationship to the person, Fiend describes their nature. Fiends can have friends. They usually do.


Santa and Satan is an old chestnut.

In Spanish, esposa means wife, and esposas means handcuffs, but that would be more of a synonym.

A bit like groom and gloom?

Fight and flight.

I’m sure we can come up with a few others here and there…

Specially if the couple is into BDSM.