1 # common meaning of second character
17 ; Ogonek (+Retroflex Hook/Tail)
29 % Greek/Cyrillic special
30 + lc: Arabic, uc: Hebrew
31 3 some Latin/Greek/Cyrillic letters
33 5 Hiragana (also lc + a/e/i/o/u)
34 6 Katakana (also uc + a/e/i/o/u)
35 J + Korean Jamo (also K)
38 # common first character
46 #Eu € # in zsh and vim
47 =B ฿ # more like B/, but prefer that for diacritical letter
49 =g ₴ # derived from cursive g= (soundalike h= or lookalike 2= seem bad options)
53 =p ₱ # =P conflicts with vim alternative for ruble
54 =R ₹ # conflicts with vim alternative for ruble
62 3: … # opposite of ⋮ (more logical would be to swap with .3 ⋯)
70 +0 ⊕ # 0+ already in use
73 0* ⊛ #XXX alternatively ⍟
75 0% ⦼ # no circled percent, but close
79 0! ⦶ # no circled exclamation mark
80 .1 ․ # obvious location, even though ‥ and … are at inconsistent .. and 3:
82 !? ⸘ # now we have everything
83 <3 ♥ # easy alias to trigraph cH-
84 :) ☺ # easy alias to 0u
89 # obvious line drawing gaps
93 dD ╷ # goddamn! stupid arabic dad got there first
102 2- ╌ # exactly like to 3 and 4
106 BF ╳ # FD and BD combined; FB already in use
110 HW Ƕ # HV conflicts with vh line drawing
114 # old/middle english (uncommon)
115 WY Ƿ # replaced by UU, later W
120 S1 Ʃ # can't use SH or ES
121 s1 ʃ # can't use sh; keep es for subscript
125 !C ǀ # corresponding zulu letter
126 !Q ǃ # idem; !. for lookalike (previously ʗ)
127 !X ǁ # idem; !/ for lookalike (previously ʖ)
128 !A ǂ # Alveolar; !- looks alike, != even more so but already occupied
130 !R ‼ # Retroflex (or Repeated); !! looks alike but occupied
132 R! Ȑ # no R-grave; double down
134 S! Ș # no S-grave; comma in use for cedilla, so misusing grave seems only fair
136 T! Ț # no T-grave; like S!
141 #es ₑ #TODO: move esh
154 #ts ₜ # both ts and Ts in use for Ћ
159 # superscripts (modifier letters)
160 AS ᵃ # alef was first for aS
165 #fS ᶠ # both fS and FS in use
173 #nS ⁿ # already present
186 # capital superscripts; avoid as most *S are in use
207 # expected but missing
210 #A0 Ǻ # normal A-ring already provided by AA
219 Y- Ȳ # conflicts with vim alternative for yen
221 'i ͺ # spacing iota subscript (like "i for combining)
224 Ac ℀ # prefer common A-smallcap for ac
225 As ℁ # prefer common a-subscript for as
226 cu ℆ # co ís present though
234 a" ǟ # a1 # long umlauted, very similar to double acute
236 jo ё # io # consistent with ja/ju
240 Z1 Ʒ # ED # doesn't make sense, put it with S1
241 z1 ʒ # ed # not in vim
242 =Y ¥ # Ye # also Y- in vim
262 l- ƚ # not really a macron, but wouldn't really make sense anyway otherwise
274 # middle tilde #XXX: not tilde above
279 ##n? ᵰ # already a tilde above
287 # not used all that much, better leave x) free
294 #I) Ȋ # )I exists, but should not confuse
304 # usage is similar to inverted breve, just as rare
327 #D2 Ɗ # in use by control char
333 F, Ƒ # described as hook, but similar to cedilla
334 f, ƒ # replaces more specialised f( and Fl, unified nowadays
337 H2 Ɦ # different hook from lowercase
339 HG Ꜧ # similar to NG, distinct from ꞕ ḩ ⱨ
349 #P2 Ƥ # in use by control char
366 Y; Ƴ # not a hook below, but Y2 hook above is already present
368 Z, Ȥ # prefer cedilla similarity like F,
372 # curls (9 is mostly free because horns are so rare)
375 j9 ʝ # crossed-tail actually
385 #2/ ƻ # rarely used, and double dash is far more logical
393 # turned/inverted (trailing I is uncommon for lowercase, and already used thusly for !I, ?I and NI)
397 #EI Ǝ # would be confusing, as it's not uppercase schwa eI
398 eI ə # schwa, not turned E (latter is very uncommon)
410 #nI ᴎ # reversed capital N, but NI already in use
412 #RI ᴚ # conflicts with RI control char
421 oE ɶ # Oe also available, but E looks capital
423 Ap ɒ #XXX Ao? (AO in use)
436 Op ɤ #XXX oy would look alike
440 #lp ɬ #XXX: lb for 'belt'
450 mL ɰ # like rL (XXX mp?)
452 # small caps (also possible at *s)
461 # more from phonetics extensions
473 sC ꜱ # sc/Sc/SC in use
479 # hangeul jamo consonants at *J
501 # hangeul jamo vowels at *J
520 # hangeul jamo iotized vowels at *K (for Korean)
527 # common formatting control
528 ZS # ZWSP; capitals like other Cc
529 ZN # ZWNJ; less obvious alt: 'Z
530 ZW # ZWJ; ZJ somewhy used for tsadi; less obvious alt: "Z
532 RL # RLM; keep rl for ɼ
535 # under development or temporary
538 $PR ► # current PR should be TR
539 $PL ◄ # current PL should be TL
540 $'> ˆ # where to put ^?
541 $'? ˜ # where to put ~?
543 $?" ΅ # tonos+dialytika
566 # rfc (incorrectly?) maps double to heavy