This is also sometimes referred to as the “flap” t.
examples: better, batter, butter, letter, waiter, writer, water, litter, greater, lighter, wetter
waited, righted, lighted, matted, sighted, fitted, metabolic
artificial, comforting, dirty
fatal, hospital, turtle
Try these words using the recording below:
This sound is different than a d sound. It is shorter in duration. In addition, we typically lengthen the vowel before the d, but not before the medial t. You can hear the difference these examples: