At first I thought that 増加 can be quantified while 上昇 cannot, but then I saw examples where 上昇 can be used to measure things like temperature and sea levels, which are also quantifiable. Is there a trick to knowing which word is used in what situations?
Thanks in advance!
I found a hinative post about this very issue: 【増加と上昇はどちらかに違いますか？】 は 日本語 で何と言いますか？ | HiNative
It seems that the difference is whether you want to express the increase of countable items, like number of people (where 増加 is used) or of a increase of a ratio/percentage (where 上昇 is used) but they did concede that even if you misuse it, it’s not too unnatural.
That makes sense. Thank you!
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