per (pɜr; unstressed pər) prep. 1. for or in each or every; a or an: Membership costs $10 per year. 2. according to; in accordance with: I delivered the box per your instructions. 3. by means of; by; through: Send it per messenger. Ready to Advance Your Clinical Knowledge? Join over 200,000 healthcare professionals who trust PER® for evidence-based continuing education. Create your free account today. PER definition: 1. used when expressing rates, prices, or measurements to mean for each : 2. used when expressing…. Learn more. What does per mean? For each; used to express a rate or ratio between two quantities. Pronunciation, examples, synonyms, etymology and translations. Per meaning a or an or for each occurs chiefly in technical or statistical contexts: miles per gallon; work-hours per week; feet per second; gallons of beer per person per year. It is also common in sports commentary: He averaged 16 points per quarter. Per is a versatile preposition used to express rates, compliance, or communication methods. Understanding its various meanings and applications enhances both written and spoken communication. The meaning of PER is by the means or agency of : through. How to use per in a sentence. Using Per as a Preposition: Usage Guide. Search for your next private equity job and access resources that will advance your career. With our origins in private equity, we are a global search and recruitment firm for private markets, working internationally and at all levels to identify, develop and retain talent. Personal Exposure Reporting (PER) from CPF allows you to record your on-the-job exposures, providing crucial documentation in Workers' Compensation cases and medical records that could save your life! We establish the per diem rates that federal agencies use to reimburse their employees for lodging and meals and incidental expenses incurred while on official travel within the continental United States.