What is D in Morse code?

D is -.., spoken as dah dit dit.

How should I learn D in Morse code?

Listen to dah dit dit as one rhythm at 20 WPM rather than counting individual marks.

International Morse alphabet

D in Morse code

Long then two short: DOG did it

-..dah dit dit

30 second sound drill

Listen to the complete rhythm. Do not count its parts.

Repetitions

Ready

Hear D as one sound

At 20 WPM, the elements join into a recognizable audio shape. Farnsworth spacing leaves time after the complete character without changing that shape.