| AR | Approved for Release | 批准发行 |
| AR | American Review | 《美国评论》 |
| AR | Acceptance Requirement | 验收条件 |
| AR | Air Rifle | 气枪 |
| AR | Authorized Representative | 全权代表 |
| AR | Access Right | 存取权 |
| AR | Argentina | 阿根廷 |
| AR | Arkansas | 阿肯色 |
| AR | Argon | 氩（化学元素） |
| AR | Androgen receptor | 雄激素受体 |
| AR | autosome recessive | 常染色体隐性遗传 |
| AR | Airman Recruit | 空军新兵 |
| AR | army regulation | 陆军调令 |
| AR | Address Register | 地址储存器 |
| AR | Artificial Reality | 人工实体 |
| AR | Auto-Resume | 自动恢复 |
| AR | active resistive exercise | 主动阻力运动，主动抗阻训练 |
| AR | Attack Rating | 命中率 |
| AR | Alternative Routing | 迂回路由选择 |
| AR | Agent Request | 代理请求 |
| AR | Access Rate | 接入率 |
| AR | Autorich Mixture | 自动富化燃烧混合物 |
| AR | Associate Register | 相联寄存器 |
| AR | Arithmetic Register | 运算寄存器 |
| AR | Architectural Review | 《建筑评论》 |
| AR | Annual Report | 年度报告 |
| AR | Analytic Reagent | 分析试剂 |
| AR | Activity Report | 活动报告 |
| AR | Acid-Resisting | 耐酸的 |
| AR | Advisory Report | 咨询报告 |
| AR | Aspect Ratio | 纵横比，屏幕高宽比 |
| AR | American Revolution | 美国独立战争 |
| AR | Ancien Regime | (尤指1789年法国大革命前的)社会及政治制度 |
| AR | Allergic Rhinitis | 过敏性鼻炎 |
| AR | Automatic Rifle | 自动步枪 |
| AR | Aqua Regia | 王水 |
| AR | Artificial Respiration | 人工呼吸急救法 |
| AR | Alarm Reaction | 警戒反应 |
| AR | Adverse Reaction | 有害反应，逆反应 |
| AR | Atrophic Rhinitis | 萎缩性鼻炎 |
| AR | Action Research | 动作研究，行动[实践]研究 |
| AR | Antibiotic Resistance | 抗生素抗性，抗菌素抗性 |
| AR | Abnormal Returns | 异常返回 |
| AR | Acetal Resin | 缩醛树脂，聚甲醛树脂 |
| AR | Alternate Routing | 迂回[更替]通路，备用通路, 潜代径路，迂回[辅助]中继 |
| AR | Annual Reviews | 评论年刊，年度综论 |
| AR | Active Region (sunspot observation) | 现用区，激活区，作用区（太阳黑子观测） |
| AR | Atmospheric Research | 大气研究 |
| AR | Area Ratio | 面积比 |
| AR | Annual Return | 岁入 |
| AR | Attributable Risk | 特异危险性 |
| AR | Approximate Reasoning | 近似推理，近似推理法 |
| AR | Analytical Reagent | 分析纯试剂 |
| AR | Acoustic Reflex | 听反射 |
| AR | Alternate Route | 迂回路由 |
| AR | Audio Response | 音频响应 |
| AR | Anti Reflective | 防反射 |
| AR | Administrative Regulation | 行政规章 |
| AR | Aircraft Repair | 飞行器修理 |
| AR | Alaska Region | 阿拉斯加地区 |
| AR | Airport Road | 机场道路 |
| AR | Assisted Resonance | 接受共振（声场控制方式） |
| AR | Acrylester Rubber | 丙烯酸酯橡胶 |
| AR | Auxiliary Routine | 辅助例程 |
| AR | Alternate Recovery | 替换恢复 |
| AR | Assistant Register | 辅助寄存器 |
| AR | allura red | 诱惑红 |
| AR | acid rain | 酸雨 |
| AR | albedo radiation | 反照辐射 |
| AR | atmospheric radical | 大气游离基 |
| AR | Arrezo (postcode, Italy) | Arrezo（邮政编码，意大利） |
| AR | After Rebate | 回扣后 |
| AR | Argonne Area Office (US DOE) | 阿贡地区办事处（美国能源部） |
| AR | Adaptive Reception Control | 自适应接收控制 |
| AR | Assessment Request | 评估请求 |
| AR | Autoregressive | 自回归 |
| AR | Acrobat Reader (Adobe Systems) | Acrobat Reader（Adobe Systems） |
| AR | Animal Rights | 动物权利 |
| AR | Assembleia da RepÚblica (Portuguese parliament) | Assembleia da RepÚblica (Portuguese parliament) |
| AR | Augmented Reality | 增强现实 |
| AR | Alabama Railroad | 阿拉巴马铁路公司 |
| AR | airway resistance | 气道阻力 |
| AR | Acoustic Research (loudspeaker manufacturer) | 声学研究（扬声器制造商） |
| AR | Art Remains (online art gallery) | 艺术遗存（在线美术馆） |
| AR | Air Reconnaissance | 空中侦察 |
| AR | Armor | 装甲 |
| AR | Repair Ship | 修理船 |
| AR | alkali reserve | 碱储量 |
| AR | Annual Rate | 年利率 |
| AR | Appenzell Ausser-Rhoden (postcode, Switzerland) | 阿彭策尔·奥斯瑟·罗登（瑞士邮政编码） |
| AR | Anti-Radiation | 防辐射 |
| AR | Adrenaline Rush (gaming; also an IMAX film) | 肾上腺素突击（游戏；也是IMAX电影） |
| AR | Amateur Radio | 业余无线电 |
| AR | Assault Rifle | 突击步枪 |
| AR | Arkansas (US postal abbreviation) | 阿肯色州（美国邮政缩写） |
| AR | Anal Retentive | 肛门保留 |
| AR | AerolÍneas Argentinas | AerolÍneas Argentinas |
| AR | Aromatic | 芳香的 |