this post was submitted on 04 Dec 2025
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me_irl
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As far as I know, that is the 'number case'. Where the difference between upper and lower case is defined based on alignment of the numbers with baseline of typography.
I think the post is taking about 'letter case'. Which we commonly use to yell at people through text. I don't think there is an equivalent like that in case of numbers. Mainly because numbers came from languages which are unicase by default. Like the Indian languages and Arabic.
Wikipedia says that they are sometimes referred to as lowercase.
It is lowercase only. But lowercase in number case. The upper and lower case is distinguished based on alignment in this, where in text case it is based on shape and/or size.
Edit: my use of the words number case and letter case does not look like the standard words. But the concept still exist. Check this: https://totallytype.com/figures.php
Most font packages call it old style figures.
In typography class we were taught to call the lining and non-lining figures.