| ISO 639-3 code
|
Language name
|
Diacritics
|
None ISO 646 letters
|
Multigraphs
|
Letters existing in IPA but having a different meaning
|
| lfn
|
Lingua Franca Nova
|
No
|
No
|
No
|
Yes (c [k], j [ʒ], x [ʃ])
|
| rmv
|
Romanova
|
No
|
No
|
No
|
Yes (c /k/, j /ʃ/)
|
| ina
|
Interlingua
|
No
|
No
|
Yes (qu [kw] or [k])
|
Yes (c (k))
|
| ido
|
Ido
|
No
|
No
|
Yes (ch /t͡ʃ/, qu /kw/, sh /ʃ/)
|
Yes (c /t͡s/, j /ʒ/, q /k/, x /ks/ or /ɡz/, y /j/)
|
| nov
|
Novial
|
No
|
No
|
Yes (ch /tʃ/, sh /ʃ/, y /j/)
|
Yes (j /ʒ/, q /k/, x /ks/)
|
| igs
|
Interglossa
|
No
|
No
|
Yes (ph, th, ch, rh -> /f/, /t/, /k/, /r/.)
|
Yes (c /k/, q /k/, x /ks/, z /ts/)
|
| epo
|
Esperanto
|
Yes (ĉ, ĝ, ĥ, ĵ, ŝ, ŭ)
|
No
|
No
|
Yes (c /t͡s/)
|
| -
|
Mundolinco [1]
|
No
|
No
|
No
|
No
|
| -
|
Glosa
|
No
|
No
|
Yes (sc /ʃ/)
|
Yes (c /tʃ/, q /kw/, x /ks/)
|
| -
|
Sambahsa[2]
|
No
|
No
|
Yes (ch /tʃ/, sh /ʃ/, and more)
|
Yes (j /ʒ/, q /x/, and more)
|
| -
|
Idiom neutral
|
No
|
No
|
Yes (sh /ʃ/)
|
Yes (c /tʃ/, j /ʒ/, y /j/)
|
| -
|
Lingwa de planeta
|
No
|
No
|
Yes (ch /tʃ/, sh /ʃ/)
|
Yes (c in ch /tʃ/, x /gs/, j /d͡ʒ/, z /d͡z/)
|
| -
|
Uropi
|
No
|
Yes (ʒ /ʒ/)
|
No
|
Yes (c [ʃ])
|
| -
|
Interslavic
|
Yes (č /tʃ/, ń /nj ~ nʲ ~ ɲ/, š /ʃ/, ž /ʒ/ )
|
No
|
dž, but similar to or same as d+ž
|
Yes (c /ts/, y /i ~ ɪ ~ ɨ/)
|