Why W matters
W is the reverse of G — G is dash-dash-dot, W is dot-dash-dash. It starts the most-used English question words (what, when, where, why, who), so you'll encounter it constantly in real-text drill.
Memorization tip
“di-DAH-DAH” — one short, two long. Reverse of G.
Common English words starting with W
Where this letter appears in the ITU alphabet
The full A–Z chart shows every letter side-by-side so you can see the pattern of dots and dashes. For just the numbers, see morse code numbers 0–9. For a printable version, the chart page combines letters, digits, and punctuation in one layout.
The history of W
W is the youngest of the standard English letters and the only one whose name is a description of its origin: it's literally a 'double U' (or 'double V'), formed by joining two V's. The letter was created in the 700s by Anglo-Saxon scribes who needed a way to write the /w/ sound that Old English used heavily but Latin lacked. The two-V ligature was standardised by the 1300s and is unique to English and a handful of related languages — Romance languages still don't really use W.
W in CW operating
W is the lead letter of the most common American ham callsign prefix (W1AW, W3DZZ, etc.) — the FCC has been issuing W-prefix callsigns since the 1920s. W is also part of WX ('weather', a frequent topic in casual QSOs), WPM ('words per minute', the standard CW speed unit), and WID ('with', a common abbreviation in informal chat). High-frequency exposure makes W an early-priority letter despite its modest 2.4% frequency.
What position 19 means in practice
W at position 19 with 2.4% frequency means about one W every forty characters of running English — modest in raw terms but boosted heavily by the question-word family ('what', 'when', 'where', 'why', 'who', 'which') which dominates the opening of nearly every interrogative sentence. In CW, W is the prefix on a huge fraction of US ham callsigns (W1AW being the most famous) and appears constantly in WPM (the standard speed unit) and WX (weather). The combination of literary frequency and operational ubiquity gives W high effective drill exposure across both casual conversation and contest traffic.
How to drill it
W is the exact reverse of G (di-dah-dah versus dah-dah-dit) — drill them as a pair. The risk at speed is dropping the leading dot and hearing W as M (two dashes). Wait for the leading dot before committing. Pair-drill W with the question-word family ('what', 'when', 'where') for high-leverage real-text practice.
Most-confused with: G, M, J — drill them together.
Sample copy: “We will walk west when winter warms.”
Frequently asked questions
What is the letter W in morse code?
The letter W in international morse code is ".--" — 3 symbols.
How do I remember the morse code for W?
"di-DAH-DAH" — one short, two long. Reverse of G.
How common is the letter W in English?
W is position 19 in English frequency, appearing in about 2.4% of running text.