Sonorization (voicing)
Spirantization (assibilation)
Rhotacism (change of [z] or [d] to [r])
L-vocalization (change of [l] to [w])
Debuccalization (loss of place)

Apheresis (initial)
Syncope (medial)
Apocope (final)
Haplology (similar syllables)
Fusion
Cluster reduction
Compensatory lengthening

Anaptyxis (vowel)
Excrescence (consonant)
Prosthesis (initial)
Paragoge (final)
Unpacking
Vowel breaking

Coarticulation
Palatalization (before front vowels)
Velarization (before back vowels)
Labialization (before rounded vowels)
Initial voicing (before a vowel)
Final devoicing (before silence)
Nasalization
Metaphony (vowel harmony, umlaut)
Consonant harmony

Crasis (contraction)
Liaison, linking R
Consonant mutation
Tone sandhi
Hiatus