−−−−−
// MORSE · DIGIT
The digit 0 in Morse
the digit 0 is coded −−−−− — five symbols. One of the regular digits in the system, identical between continental and international Morse.
Memory hook
Five dashes — the long zone.
CW phonetic: say "daa daa daa daa daa" out loud. "di" is short, "daa" is three times longer.