Index of English words, starting with "tr"

(1) - Triphthong (n.) A combination of three vowel sounds in a single syllable, forming a simple or compound sound; also, a union of three vowel characters, representing together a single sound; a trigraph; as, eye, -ieu in adieu, -eau in beau, are examples of triphthongs.

(1) - Triphthongal (a.) Of or pertaining to a triphthong; consisting of three vowel sounds pronounced together in a single syllable.

(1) - Triphylite (n.) A mineral of a grayish-green or bluish color, consisting of the phosphates of iron, manganese, and lithia.