Radical combination

The keisei script (phonosemantic composition) helps with that, at least for a significant subset of the kanji: [Userscript] Keisei 形声 Semantic-Phonetic Composition

It happens constantly as you advance in the levels and it also frustrates me. Seeing the relation between kanji is a huge help to memorize them IMO, but wanikani obfuscates that more often than not through the use of arbitrary “radicals”. It’s probably my number one issue with the system.

My personal advice is to completely ignore radicals after the first few levels since they generally do more harm than good.

For instance I learned last week but only yesterday did I notice that it was used as a component in , taught 38 levels earlier. It’s the phonetic component too, so it’s actually useful to notice since it helps memorize the テイ reading.