Quick answer
November represents the letter N. Its blue-and-white chequered flag means “No (negative)” when used as a single-letter International Code signal. The Singapore government’s signal chart lists both the flag and its meaning.
| Feature | Supported description |
|---|---|
| Letter and spelling word | N — November |
| Visual identification | Blue-and-white chequered flag |
| Single-letter meaning | No (negative) |
| Morse equivalent | Dash dot (− ·) |
| Manufacturing dimensions | No exact hoist-to-fly ratio, size or tolerance established here. |
| Colour standards | Blue and white are identification colours; no physical colour standard or exact digital values established here. |
Construction and artwork limits
The cited government chart supports identification, but is not treated here as a dimensioned manufacturing drawing. Exact geometry and proportions must not be inferred by measuring its artwork. Common manufacturing practice has not been independently established for this record.
A screen rendering would be an approximation unless supported by a separately documented colour specification. An editorial reconstruction would also need to be labelled as such.
Historical context
Singapore’s 2025 chart is headed International Code of Signals (1969); that heading does not establish when November’s flag design originated. The US Naval History and Heritage Command’s phonetic-alphabet comparison places “November” in its 1957–present column. That is evidence about the spelling word, not a flag-design adoption date.