diff --git a/toml.abnf b/toml.abnf
index 0446f8b6..580a1f13 100644
--- a/toml.abnf
+++ b/toml.abnf
@@ -58,8 +58,11 @@ unquoted-key-char =/ %xB2 / %xB3 / %xB9 / %xBC-BE       ; superscript digits, fr
 unquoted-key-char =/ %xC0-D6 / %xD8-F6 / %xF8-37D       ; non-symbol chars in Latin block
 unquoted-key-char =/ %x37F-1FFF                         ; exclude GREEK QUESTION MARK, which is basically a semi-colon
 unquoted-key-char =/ %x200C-200D / %x203F-2040          ; from General Punctuation Block, include the two tie symbols and ZWNJ, ZWJ
-unquoted-key-char =/ %x2070-218F / %x2460-24FF          ; include super-/subscripts, letterlike/numberlike forms, enclosed alphanumerics
-unquoted-key-char =/ %x2C00-2FEF / %x3001-D7FF          ; skip arrows, math, box drawing etc, skip 2FF0-3000 ideographic up/down markers and spaces
+unquoted-key-char =/ %x2070-21FF / %x2300-24FF          ; skip math operators
+unquoted-key-char =/ %x25A0-268B / %x2690-2757          ; skip box drawing, block elements, and some yin-yang symbols
+unquoted-key-char =/ %x2762-2767 / %x2776-27E5          ; skip some Dingbat punctuation
+unquoted-key-char =/ %x2801-297F                        ; skip some math brackets and arrows, and braille blank
+unquoted-key-char =/ %x2B00-2FFF / %x3001-D7FF          ; skip various math operators and symbols, and ideographic space
 unquoted-key-char =/ %xF900-FDCF / %xFDF0-FFFD          ; skip D800-DFFF surrogate block, E000-F8FF Private Use area, FDD0-FDEF intended for process-internal use (unicode)
 unquoted-key-char =/ %x10000-EFFFF                      ; all chars outside BMP range, excluding Private Use planes (F0000-10FFFF)
 
diff --git a/toml.md b/toml.md
index 8862f0ea..33bde080 100644
--- a/toml.md
+++ b/toml.md
@@ -104,10 +104,15 @@ first = "Tom" last = "Preston-Werner" # INVALID
 A key may be either bare, quoted, or dotted.
 
 **Bare keys** may contain any letter-like or number-like Unicode character from
-any Unicode script, as well as ASCII digits, dashes and underscores.
-Punctuation, spaces, arrows, box drawing and private use characters are not
-allowed. Note that bare keys are allowed to be composed of only ASCII digits,
-e.g. 1234, but are always interpreted as strings.
+any Unicode script, as well as digits, dashes and underscores. Various symbols
+(such as emojis or arrows) and punctuation marks from outside the ASCII range
+are also allowed, while whitespace and private use characters are forbidden. It
+is advisable to use only words (in arbitrary languages) as bare keys, as they
+are generally accepted, while not all symbols and punctuation marks are. If you
+want to use a bare key made up of several words, use a suitable separator
+character (such as an underscore or hyphen) between the words, as spaces are not
+allowed. Note that bare keys are allowed to be composed of only digits, e.g.
+1234, but are always interpreted as strings.
 
 ℹ️ The exact ranges of allowed code points can be found in the
 [ABNF grammar file][abnf].
@@ -118,7 +123,6 @@ bare_key = "value"
 bare-key = "value"
 1234 = "value"
 Fuß = "value"
-😂 = "value"
 汉语大字典 = "value"
 辭源 = "value"
 பெண்டிரேம் = "value"