So my studies outside of wanikani if came across this kanji 表 which according to wanikani means “express”
However, upon checking multiple dictionaries online I get: surface, table, chart, diagram and nothing to do with express…
Any clarification on this?
表
It’s unlikely at this point (after existing for almost 10 years) that any of WaniKani’s meanings would be egregiously wrong. When you’re talking about the meaning in English there’s always going to be resources that don’t agree with each other. I would recommend consulting kanji dictionaries in Japanese, like the one I linked when you want to get to the bottom of some apparent contradiction. The meanings usually don’t use difficult grammar or long explanations, so it should be usable even for beginners.
Notice in the J-J dictionary the verb あらわす・あらわれる is both the act of expression transitively, and the appearance (expression) of something intransitively. It is all the same idea, we just say it slightly differently in English. Although, I feel like I’ve heard ‘expression’ used to describe a static appearance in some high falutin’ English somewhere.