From Longman Dictionary of Contemporary Englishwithinwith‧in /wɪðˈɪn $ wɪðˈɪn, wɪθˈɪn/ ●●●S1W1 preposition, adverb 🔊 🔊 1a)AFTERbefore a certain period of time has passed 🔊 We should have the test results back within 24 hours. 🔊 He fell sick and died within a matter of weeks. 🔊 Within an hour of our arrival Caroline was starting to complain.b)DURINGduring a certain period of time 🔊 the enormous success of televised sport within the last twenty years 🔊 Within the space of a year, three of the town’s factories have closed down.► see thesaurus at after, during2less than a certain distance from a particular place 🔊 The invading troops came within 50 miles of Paris. 🔊 Within a five mile radius of Ollerton there are several pubs and restaurants. 🔊 We live within easy reach of (=close to) the shops. 🔊 Adjust the driver’s seat so that all the controls are within reach (=close enough to touch).within sight/earshot (of something) (=close enough to see or hear) 🔊 As she came within sight of the house, she saw two men getting out of a car.3IN/INSIDEinside a particular building or area opp outside 🔊 Prisoners who died were buried within the walls of the prison. 🔊 public footpaths within the national park 🔊 The rooms within were richly furnished.apply/enquire within (=used on notices on the outside of buildings) 🔊 Baby rabbits for sale. Enquire within.4IN/INSIDEinside a society, organization, or group of people opp outside 🔊 There have been a lot of changes within the department since I joined. 🔊 an attempt to reform the system from within5DEPEND/IT DEPENDSif something stays within a particular limit or set of rules, it does not go beyond that limit 🔊 We have to operate within a very tight budget. 🔊 Security firms have to work strictly within the law. 🔊 You can go anywhere you want within reason (=within reasonable limits).6literary or formal inside a person’s body or mind opp outside 🔊 Elaine felt a pain deep within her. 🔊 I’m feeling more relaxed within myself.