B2happening during, as a result of, or according to a particular situation, event, rule, etc.: The work was completed under very difficult conditions.Now that the deadline is approaching we all feel under pressure.The chair broke under his weight (= because he was too heavy for it).Under the present rules, you can buy ten litres of wine.Simultaneous and consecutiveOrder and sequenceunder attack, consideration, discussion, etc.B2in the process of being attacked, considered, discussed, etc.: The town is under fire(= is being attacked) from the air.The proposals are now under consideration by the Board of Governors.The situation is still not under control.Experiencing and sufferingunder sedation, anaesthetic, etc.UK›treated in the way mentioned: The patient is being kept under heavy sedation.She'll have to go under anaesthetic for the operation.old-fashionedShe's been under the doctor for a viral infection.Treating and caring for peopleDoctors and health workers generallyPeople who receive medical treatmentbe under an impression/beliefB2to believe something, often wrongly: He was under the mistaken belief that I was in charge.Believing
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