nounπShareAn airline's main operating unit, as opposed to codeshares or regional subsidiaries.""Although smaller regional airlines operate flights for United, the mainline handles the major routes and international destinations." "industrybusinessvehicleChat with AIVocabulary GamePractice Reading
nounπShareThe main repository for a software project, from which different versions (forks) may be split off."After some experimentation with a new user interface, the developers merged their changes back into the mainline of the software project. "computingtechnologyinternetChat with AIVocabulary GamePractice Reading
verbπShareTo inject (a drug) directly into a vein."The addict chose to mainline the heroin rather than smoke it. "medicinesubstancebodyactionChat with AIVocabulary GamePractice Reading
verbπShareTo integrate (code, etc.) into the main repository for a software project, rather than separate forks."After testing the new feature thoroughly, the developer will mainline the code into the project's main repository. "computingtechnicalinternettechnologyworkChat with AIVocabulary GamePractice Reading
adjectiveπShareNormal, principal or standard.""The mainline internet connection is much faster than the wireless one." "stylelanguagecommunicationChat with AIVocabulary GamePractice Reading
adjectiveπShareOf or pertaining to the principal route or line of a railway."The express train always uses the mainline track to avoid delays. "technicalvehicleChat with AIVocabulary GamePractice Reading
adjectiveπShareOf or pertaining to a surface railway as distinct from an underground, elevated or light rail one."The slower train operates on the mainline railway, stopping at more rural stations than the express service. "vehicletrafficsystemChat with AIVocabulary GamePractice Reading
