List of Acronyms and Initialisms: R - RO

RO

• ro – (s) Romanian language (ISO 639-1 code)
• RO – (i) Range Only – Red Orchestra – (s) Romania (ISO 3166 and FIPS 10-4 country code digram)
• ROA – (a/i) Rate Of Ascent
• ROC – (i/a) Receiver Operating Characteristic (statistics) – Regional Operations Centre – Republic Of China – Roc-A-Fella Records – Regional Organisations of Councils
• ROCV or ROC-V – (i) Recognition Of Combat Vehicles ("rock-vee")
• ROD – (a/i) Rate Of Descent – Record Of Decisions – Report Of Discrepancy
• ROE – (i) Rules Of Engagement
• roh – (s) Raeto-Romansh language (ISO 639-2 code)
• ROH – (i) Ring of Honor
• ROI – (i) Return On Investment, Republic of Ireland.
• ROFL(MAO) – (i) Rolling On the Floor Laughing (My Ass Off)
• ROFLOL – (i) Rolling On the Floor Laughing Out Loud
• ROK – (a/i) Republic of Korea
• ROL – (s) Romanian leu (ISO 4217 currency code)
• ROM – (a) Read-Only Memory – Refuel On the Move – Royal Ontario Museum
• ron – (s) Romanian language (ISO 639-2 code)
• RON – (s) Romanian new leu (ISO 4217 currency code)
• ROP – (i) Render Output Pipeline
• ROPE – Research Opportunity and Performance Evidence
• RORO OR ro-ro – (a) Roll-On/Roll-Off (ferry)
• ROS – (i) Reactive Oxygen Species
• ROTC – (i) Reserve Officer Training Corps ("Rawt-Cee")
• ROU – (s) Romania (ISO 3166 trigram)
• ROV – (i) Remotely Operated Vehicle
• ROW – (i) Right Of Way – Rest Of the World
• ROWPU – (a) Reverse Osmosis Water Purification Unit ("roe-pew")
• ROY G BIV - colors of the prism; Red, Orange, Yellow, Green, Blue, Indigo, Violet
• ROZ – (a/i) Restricted Operations Zone