Excavation or structure to provide access to groundwater A dug well in a village in Faryab Province, Afghanistan The difference between a well and a cistern is in the source of the water: a cistern collects rainwater whereas a well draws from groundwater. A well is an excavation or structure created on the earth by digging, driving, or drilling to access liquid resources, usually water. The ... Well Pharmacy are a top UK pharmacy providing free prescription deliveries, consultations and health services from 780 local branches. Get in touch now The meaning of WELL is an issue of water from the earth : a pool fed by a spring. How to use well in a sentence. Good vs. Well: Usage Guide Synonym Discussion of Well. WELL definition: 1. in a good way, to a high or satisfactory standard: 2. very much, to a great degree, or…. Learn more. Define well. well synonyms, well pronunciation, well translation, English dictionary definition of well. n. 1. A deep hole or shaft sunk into the earth to obtain water, oil, gas, or brine. 2. A container or reservoir for a liquid, such as ink. 3. a. WELL definition: in a good or satisfactory manner. See examples of well used in a sentence. Sign in to your Well account well, adj. & n.³ meanings, etymology, pronunciation and more in the Oxford English Dictionary Your prescription, delivered free of charge Save time and get peace of mind with our repeat NHS prescription delivery service. With home delivery and Click and Collect options available, you can order your prescription and we'll take care of the rest. Well definition: A deep hole or shaft sunk into the earth to obtain water, oil, gas, or brine.