di
di — noun
- disingular
- displural
1. a detective who holds a middle rank in the British police force and leads invest
a detective who holds a middle rank in the British police force and leads investigations into serious crimes
DI Karim Osei questioned the main suspect for four hours before the trial.
DI + surname as title
The chief constable promoted Sergeant Elena Rossi to DI last March.
DI Mira Singh requested the forensic team to check the victim's phone records.
At the morning briefing, DI Ryo Nakajima handed out photos of the stolen jewellery.
- detective inspector
the full written form, more formal than the abbreviation
- CID officer
broader term referring to any officer in the Criminal Investigation Department, not a specific rank
- inspector
a general rank that includes uniformed inspectors as well as detectives
文法句型
DI + [surname]
用法筆記
Always pronounced as two separate letters ('D-I'), not as a single syllable. When used before a surname, no article is needed: 'DI Patel' not 'the DI Patel'.
常見錯誤
2. a military officer responsible for training new soldiers in basic combat skills,
a military officer responsible for training new soldiers in basic combat skills, marching, weapons handling, and physical fitness, often using very strict discipline
DI Luca Bianchi shouted orders at the new recruits during morning drill.
DI as military training officer
The platoon's DI taught the soldiers how to clean and assemble a rifle.
possessive: [unit]'s DI
Every morning at six, DI Amelia Hart ran the recruits through boot-camp exercises.
Recruits who failed the fitness test returned to DI Yara for extra training.
- drill sergeant
the more common term in the U.S. Army, referring specifically to a sergeant who trains recruits
- training instructor
a broader, more neutral term used across different military branches
文法句型
DI + [surname]
the + DI
用法筆記
Commonly associated with the United States Marine Corps and other branches of the U.S. military. Frequently appears in films and books about military basic training.
3. a medical condition in which the body produces very large amounts of urine and t
a medical condition in which the body produces very large amounts of urine and the person feels extremely thirsty, caused by a problem with a hormone that controls the kidneys' water balance
Doctor Kwame Asante diagnosed Aiko with DI after her blood and urine tests came back.
diagnose + with + DI (medical abbreviation)
Children with DI must drink regularly to prevent dehydration during hot weather.
The endocrinologist prescribed a nasal spray to manage Rin's DI symptoms effectively.
Without treatment, DI can cause serious dehydration and confusion in elderly patients.
文法句型
diagnosed with DI
DI + verb
用法筆記
Not to be confused with diabetes mellitus (普通糖尿病), which is far more common and involves blood sugar rather than water balance. The two conditions have completely different causes and treatments.