flag semaphore
Fetched 2026-10-26 (cache).
Datamuse reports no synonyms or antonyms for this word.
Noun
- A form of [[telegraphy]], using [[hand-held]] [[flag]]s or similar, typically used at [[sea]].
Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.