Have you tried focusing on the radical mnemonic for this word?
I feel like antenna -> interference is an easier leap than ford -> interference.
Unless it’s like… to ford is to cross… antennas… crossing… signal interference!
I’ve just learned 干 as the kanji for dry, so I didn’t think of the radical. Antennas crossing>signal interference, that is actually great, thanks! 助かりました!
The Leech squashing thread also has lots of discussions on meanings, nuances, strategies for identifying and squashing words you have trouble with, etc. I thought of this thread as a quick, straightforward way to request a mnemonic when the one provided by WK seems insuficient.
Anyway, I thought it would be useful because of this thread: