We’re moving next to the homophone: a word pronounced the same as another but differing in meaning, whether spelled the same way or not, as heir and air. So … contronyms are words that have contradictory meanings (sanctiion = approve and disapprove; homophones sound alike but to not mean the same—and often are not spelled the same, either.
adds verb (3rd person singular): to calculate a sum
ads noun (plural): advertisements
adze (noun): an ax-like tool, for dressing timbers roughly, with a curved, chisel-like steel head mounted at a right angle to the wooden handle. (See below.)
I carefully would check the ads—
I needed then a brand new adze.
But I’m a guy who rarely adds
With too much confidence.
My checkbook doesn’t make much sense
(It’s never balanced, to the cents),
And so I couldn’t buy the tool—
I cursed myself, You’re such a fool
For failing all that math in school!
So now to see my bills are paid
I’m once again in seventh grade,
Where progress (so I hope) is made.
The kids are pretty nice to me—
Don’t laugh at me too frequently.
How thoughtful those sweet kids can be!