Morse Code for "3" — Pattern, Mnemonic & Audio
···−−
3 = ···−− (3 dits, 2 dahs)
Mnemonic
i-di-ot-THREE-TREES
Syllable-based memory aid
Timing
1 + 1 + 1 + 3 + 3 units
At 20 WPM: 540ms total
Type
Number
International Morse Code (ITU-R M.1677-1)
Common Words with 3
THIRD3LETTER73300HZ3MIN
Abbreviated Numeral (Cut Number)
···−−
Full (5 elements)
→
···−
Cut = V
Cut number: V (···−). The V for Victory signal (···−) is also the Morse for the number 3 in cut form. Famous from WWII.
In Amateur Radio
Appears in the 30m band (10 MHz), 3.5 MHz (80m band), and RST reports. Cut number: V (···−). Beethoven's Fifth — da-da-da-DUM.
In Aviation
Appears in 3-letter airport codes (JFK, LHR, DXB), VOR identifiers, and approach categories (CAT III).
In Maritime
Appears in the 3-letter ITU country prefixes, vessel call signs, and the three-minute silent periods on 500 kHz.