Prowords (procedure words) are single words or short expressions replacing longer phrases so that radio traffic is unambiguous, fast and independent from mother tongue. They are the international standard: a station speaking with a proword declares precisely the type of action required, with no lexical or cultural ambiguity. Proword fluency is the most immediate sign of an operator's radio training level.
What they are and why they exist
A natural phrase like "ok, got it, I'll let you know when I'm done" under stress, on compressed voice, in a non-native language is a time bomb of interpretation. A single proword — WILCO — replaces it unambiguously. Prowords are standardised in NATO ACP-125 and follow-ons, and replicated in essentially every Western military radio course. Learning the right proword means speaking the same language as Italian, British, US, French, Ukrainian operators trained on NATO standards — without having to mediate through natural language.
Core prowords
Minimum operational list. A functional radio operator knows these by heart, recognises them immediately on receive, uses them correctly on transmit. The list is not exhaustive — unit CEOIs can add more, but these are the common core.
| Proword | Use |
|---|---|
| OVER | Fine della propria trasmissione, attesa di risposta. |
| OUT | Fine dello scambio. Non ci si aspetta risposta. |
| ROGER | Messaggio ricevuto e compreso. |
| WILCO | Will Comply. Ricevuto, compreso, sarà eseguito. |
| SAY AGAIN | Ripetere la trasmissione (non "REPEAT"). |
| I SAY AGAIN | Sto per ripetere la mia trasmissione. |
| I SPELL | Sto per fare lo spelling della parola successiva. |
| AFFIRMATIVE | Sì, conferma. |
| NEGATIVE | No, negazione. |
| BREAK | Pausa tecnica dentro la stessa trasmissione. |
| BREAK BREAK | Interruzione di emergenza del traffico in corso. |
| CORRECTION | Errore di trasmissione, segue la correzione. |
| DISREGARD | Ignorare la trasmissione precedente. |
| STAND BY | Restare in ascolto, pausa breve. |
| WAIT | Attendere meno di 5 secondi. |
| WAIT OUT | Attendere oltre 5 secondi, si richiamerà. |
| READ BACK | Ripetere quanto trasmesso per conferma. |
| I READ BACK | Sto ripetendo quanto ricevuto per conferma. |
| RELAY | Trasmettere il messaggio a una terza stazione. |
| RADIO CHECK | Test di qualità del collegamento. |
| ROGER SO FAR | Confermo ricezione fino a questo punto, procedi. |
| EXECUTE | Eseguire l'ordine concordato. |
| EXECUTE TO FOLLOW | L'ordine arriverà; prepararsi all'EXECUTE. |
Examples in context
ALPHA TWO, this is BRAVO SIX, RADIO CHECK, OVER.
BRAVO SIX, ALPHA TWO, LIMA CHARLIE, OVER.
ALPHA TWO, this is BRAVO SIX, move to grid four-fife-niner-niner-three-two, I SAY AGAIN, four-fife-niner-niner-three-two, ACKNOWLEDGE, OVER.
BRAVO SIX, ALPHA TWO, WILCO, OUT.
ALL STATIONS, this is ZULU SIX, BREAK BREAK, FLASH traffic, STAND BY.
BRAVO SIX, this is ALPHA TWO, SAY AGAIN ALL AFTER "grid four-fife", OVER.
Precedence prowords
Precedence prowords declare a message's urgency and change net behaviour: higher precedence traffic suspends lower precedence traffic. Abuse of high precedence (FLASH for non-FLASH traffic) is one of the most serious radio-discipline errors because it desensitises the net to real emergencies.
| Proword | Use |
|---|---|
| FLASH | Precedenza massima. Eventi di importanza nazionale o sopravvivenza unità. |
| IMMEDIATE | Eventi che richiedono azione entro 30 minuti. |
| PRIORITY | Traffico urgente ma non immediato. Azione entro 3 ore. |
| ROUTINE | Traffico normale, azione entro 6 ore. |
Prowords NOT to use
Civilian expressions and cinematic jargon constantly contaminate international-volunteer nets. Every occurrence is a visible signal of incomplete training and degrades traffic quality. Removing them from one's repertoire is one of the first steps in moving from "person with a radio" to "radio operator".
| Banned | Why / Replacement |
|---|---|
| OVER AND OUT | Civile e logicamente contraddittorio (OVER attende risposta, OUT chiude). Usare solo OUT. |
| COPY THAT | Civile/gergo cinematografico. Non standard NATO. Usare ROGER. |
| 10-4 | Codice police-radio statunitense, non NATO. Usare ROGER. |
| ROGER THAT | Variante civile. ROGER è già completo. |
| REPEAT | Procedura artiglieria: significa "ripetere il fuoco". Per ripetere una trasmissione si usa SAY AGAIN. |
| BREAKER BREAKER | Slang CB civile. Inappropriato su rete militare. |
Multinational nets
Prowords are particularly valuable on multinational nets: an Italian and a Brazilian can work the same net without language differences becoming a problem, because prowords standardise the procedure. Adding italianised or brazilianised prowords ("ricevuto", "entendido") on a NATO-procedure net is a common and systematic error — it works until everyone is of the same nationality, then breaks at the first newcomer.
Common mistakes
- Using "COPY THAT", "10-4", "OVER AND OUT" under stress by cinematic reflex
- Saying "REPEAT" to ask for repetition instead of SAY AGAIN
- Skipping OVER at end of your transmission — the other station doesn't know you are done
- Using WILCO without being certain you can comply — it is an operational commitment
- Saying ROGER then not acting — ROGER confirms receipt, not action (WILCO is the action commitment)
- Saying AFFIRMATIVE/NEGATIVE when ROGER/WILCO or another construction would fit better
- Improvising new prowords inside a team — works only until you talk only among yourselves
Lessons learned Ukraine
On international-volunteer nets in Ukraine you hear everything: Italian prowords, US cinematic slang, Portuguese civilian jargon, improvised words. The problem is not cosmetic — it becomes critical the moment a multinational QRF responds to a request and authentication, EXECUTE order or BREAK CONTACT are given with non-standard prowords. Units that enforce proword discipline significantly reduce interpretation errors under stress; units that don't pay the cost in the worst moments. A single operator cannot change a unit's culture, but can enforce proword discipline on themselves — they will be the one understood by anyone, on any net.