Consonant Softening (Voicing) in Turkish

Consonant Softening (Ünsüz Yumuşaması or consonant voicing) occurs when a word ending in one of the voiceless stops p, ç, t, k receives a suffix starting with a vowel. To ease pronunciation between vowels, the voiceless consonant becomes voiced: p → b, ç → c, t → d, and k → ğ (or rarely g after n).

Consider these standard examples: kitap (book) + -ım (my) → kitabım (my book); ağaç (tree) + -a (to) → ağaca (to the tree); kanat (wing) + -ı → kanadı (his wing); köpek (dog) + -i → köpeği (the dog, acc.). Proper nouns soften in spoken Turkish but retain their original spelling in writing, using an apostrophe (e.g., written Ahmet'e, pronounced Ahmede).

Exceptions exist: most single-syllable native words do not soften (top → topu, süt → sütü, ip → ipi), though a few common ones do (çok → çoğu, kap → kabı). Many foreign loanwords also resist softening (hukuk → hukuku, devlet → devlete). Learners often forget to soften k into ğ in everyday words (saying bebeki instead of bebeği).