■■ Collins 4 △subject to the supervision, jurisdiction, control, or influence of
■ OALD 4 △used to say who or what controls, governs, or manages someone or something
■ COBUILD 8 △If something happens under a particular person or government, it happens when that person or government is in power.
- The country is now under martial law.
- The coinage was reformed under Elizabeth I (= when she was queen).
- She has a staff of 19 working under her.
- Under its new conductor, the orchestra has established an international reputation.
- There would be no new taxes under his leadership.
- ...the realities of life under a brutal dictatorship...
■ COBUILD 7 △If something happens under a law, agreement, or system, it happens because that law, agreement, or system says that it should happen.
- Six suspects are being held under the Computer Fraud and Abuse Act.
- Under the terms of the lease you had no right to sublet the property.
- Is the television still under guarantee?
- Under law, your employer has the right to hire a temporary worker to replace you...
- Under the Constitution, you cannot be tried twice for the same crime.
■■ COLLINS 5 △subject to (conditions); in (certain circumstances)
■ OALD 7 △affected by something
■ OALD 6 △experiencing a particular process
■ COBUILD 5 △You can use under before a noun to indicate that a person or thing is being affected by something or is going through a particular process.
- The wall collapsed under the strain.
- I've been feeling under stress lately.
- I'm under no illusions about what hard work this will be.
- You'll be under anesthetic, so you won't feel a thing.
- The hotel is still under construction.
- The matter is under investigation.
- ...fishermen whose livelihoods are under threat...
- I'm rarely under pressure and my co-workers are always nice to me...
- Firemen said they had the blaze under control...
- He was rushed to court yesterday under armed guard.
CF. COLLINS 9 △powered by: under sail