^ abAncient Greek had geminate consonants, pronounced longer than single ones, which may be transcribed as a double consonant letter ⟨ss⟩ or with the length symbol ⟨sː⟩. Modern Standard Greek does not have geminate consonants, but nonstandard dialects do.
^ abcdefghIn Modern Greek, ⟨κ; γκ, γγ; γ; χ⟩ are pronounced as palatal [c, ɟ, ʝ, ç] before the front vowels [e i], and velar [k, g, ɣ, x] in other cases.
^ abcd⟨ζ⟩ represented the cluster [zd] in Classical Attic, but represents [z] in Modern Greek. In both Ancient and Modern Greek, ⟨σ⟩ is pronounced as voiced [z] before a voiced consonant, and ⟨ξ, ψ⟩ represent the clusters [ks ps].
^ abcIn Ancient Greek, a diphthong before a vowel was realized as a vowel and a double semivowel sequence: [jj, ww].
^ abcdIn Modern Greek, ⟨μπ, ντ, γκ, γγ⟩ are either pronounced as prenasalized voiced stops [mb, nd, ɲɟ, ŋɡ] or as voiced stops without nasalization [b, d, ɟ, ɡ].
^ abcIn Modern Greek, ⟨υ⟩ in the combinations ⟨αυ ευ ηυ⟩ is pronounced as [f] before a voiceless consonant and [v] in other places. In Ancient Greek, ⟨αυ ευ ηυ⟩ were the diphthongs [au̯ eu̯ ɛːu̯].
^The rough breathing ⟨῾⟩ represented [h] before a vowel, and the smooth breathing ⟨᾿⟩ represented the absence of [h].
^ abcdefghijIn Modern Greek, ⟨η, ῃ, ει, ι, οι, υ, υι⟩ all represent [i]. These were pronounced [ɛː, ɛːi̯, eː, ei̯, i(ː) oi̯, y(ː), yi̯] in Ancient Greek. The large number of vowel mergers into [i] is called iotacism.
^ abcdIn Modern Greek, ⟨ε, αι⟩ both represent [e], and ⟨ο, ω⟩ both represent [o]. In Ancient Greek, ⟨ε, ο⟩ represented [e, o], ⟨ω⟩ represented [ɔː], and ⟨αι⟩ represented the diphthong[ai̯].
^ abcIn early Ancient Greek, ⟨ᾳ, ῃ, ῳ⟩ were diphthongs, but the second element [i̯] was lost soon after the Classical period, and they merged in pronunciation with ⟨ᾱ, η, ω⟩.
^The symbols used here for Ancient Greek pitch accent must be added as combining characters in some cases. Place the numeric character reference after the letter that you wish to put the accent on, then press Show preview and copy the resulting accented character. ́ is the numeric character reference for combining acute tone mark (high tone), ̌ for combining caron (rising tone), ̂ for combining circumflex (falling tone).