7
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R, 54 bytes
library(Unicode)
cat(u_char_name(utf8ToInt(x)),sep="\n")
Usage
cat(paste0(u_char_name(utf8ToInt("Hello, World!")), "\n"))
LATIN CAPITAL LETTER H
LATIN SMALL LETTER E
LATIN SMALL LETTER L
LATIN SMALL LETTER L
LATIN SMALL LETTER O
COMMA
SPACE
LATIN CAPITAL LETTER W
LATIN SMALL LETTE...