| Phthongal | n. A vocalized element or letter. [ 1913 Webster ] |
| Phthongal | a. [ Gr. &unr_; voice. ] Formed into, or characterized by, voice; vocalized; -- said of all the vowels and the semivowels, also of the vocal or sonant consonants g, d, b, l, r, v, z, etc. [ 1913 Webster ] |
| Diphthongal | a. Relating or belonging to a diphthong; having the nature of a diphthong. -- |
| Diphthongalize | v. t. To make into a diphthong; to pronounce as a diphthong. [ 1913 Webster ] |
| Monophthongal | a. Consisting of, or pertaining to, a monophthong. [ 1913 Webster ] |
| Triphthongal | a. Of or pertaining to a triphthong; consisting of three vowel sounds pronounced together in a single syllable. [ 1913 Webster ] |