So I’m level three and I’m just curious about the contexts of the general word “round”. I understand the way in which they’re different (thanks wanikani) but some of the context sentences don’t really seem to clear it up for me.
EDIT: Though I guess this doesn’t really answer your question, but maybe if you talked about what you don’t understand in the context sentences we could address those.
And I see that 円い月 is one of the examples. Perhaps this is confusing because we know the moon’s true shape is spherical. Well, that’s just one of those things. With the full moon specifically they write 円い.
Maybe it becomes clearer if you just think about what 円い means here. The moon is always 丸い in reality, but it’s only 円い when it’s full, so you see a circular shape.
I just need to think about each word in context to its part of speech. Remembering that 丸 is a noun, 丸い is a round, spherical adjective, and 円い is a flat, round/circular adjective should help me keep things in order!