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круглосуточно adv. stresses
gen.	day and night (We heard loud music day and night from our neighbor's apartment.); night and day; within 24 hours (Alexander Matytsin); 24/7/365 (24 hours a day/ 7 days a week/ 365 days a year Alexander Demidov)
math.	on a 24-hour basis; twenty-four-hour
med.	around the clock (Vosoni)
tech.	24 hours a day; on a round-the-clock basis; round-the-clock
круглосуточный adj.
gen.	twenty-four-hour; around-the-clock; day-and-night; 24-hour (denghu); 24-h/7-day (larisa_kisa); twenty-four-seven (Alexander Demidov); overnight (sergeidorogan); 24 x 7 (Kugelblitz); roundtheclock (ssn); round-the-clock; twenty-four-seven (all the time: constantly or around the clock ( slang ) ( 7.html) msn.com Gioia)
book.	noctidial
chem.	around the clock
construct.	round-the-clock (напр., о строительных работах); open 24 hours a day
math.	round-the-clock access (доступ)
oil	day-night
railw.	all day
TV	full-time (full-time channel Shonichev)
круглосуточно adv.
gen.	twenty-four-seven (twenty-four seven (also 24 / 7) adv. (informal) twenty-four hours a day, seven days a week (used to mean Сall the time'): He's on duty twenty-four seven. OALD Alexander Demidov); round the clock; 24 hours (Alexander Matytsin); throughout the day and night (I worked on this project throughout the day and night. Alex_Odeychuk); around the clock (Alex_Odeychuk); twenty-four hours a day (The customer service hotline is available twenty-four hours a day for any questions or concerns. Alex_Odeychuk); day and night (Alex_Odeychuk)
inf.	all day and night (We heard loud music all day and night from our neighbor's apartment. • The store is open all day and night for your convenience. Alex_Odeychuk)
media.	all round the clock
mil.	twenty-four-seven (qwarty)
Russian thesaurus
круглосуточно abbr.
abbr.	24/7/365 (24 hours a day/ 7 days a week/ 365 days a year Alexander Demidov)

круглосуточно: 227 phrases in 61 subjects

Abbreviation	1
Advertising	2
Agriculture	2
Airports and air traffic control	1
Apollo-Soyuz	4
Astronautics	2
Automated equipment	3
Automobiles	1
Aviation	8
Banking	2
British usage, not spelling	1
Business	11
Business style	1
Cinematography	1
Commerce	1
Communications	2
Computer networks	1
Computers	1
Construction	6
Diplomacy	2
Drilling	2
Economy	6
Electrical engineering	6
Electronics	1
European Bank for Reconstruction and Development	1
Firefighting and fire-control systems	2
General	41
Health care	3
Information security and data protection	1
Information technology	3
Intelligence and security services	4
Law	4
Logistics	2
Makarov	10
Mass media	6
Mathematics	1
Medical	2
Metallurgy	1
Meteorology	2
Microelectronics	1
Military	18
Nautical	1
Navigation	3
North American USA and Canada	2
Oil / petroleum	4
Oil and gas	2
Oil and gas technology	1
Police	1
Politics	1
Production	1
Quality control and standards	2
Rail transport	2
Real estate	1
Sakhalin	2
Security systems	8
Shipbuilding	1
Slang	1
Sociology	1
Solar power	1
Technology	20
Telecommunications	2