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ключ n
gen.	clew (до розгадки); fountain-head; key; lead (до рішення); pass-key (від вхідних дверей); secret; seep; spring; well; well-head; well-spring; winder (від годинника, заводної іграшки); clue; file; flight; flock (птахів); line (of birds); row; string; train
comp.	switch; toggle
comp., MS	dongle (A security device connected to an input/output port to permit the use of a particular software package on that computer. The use of the hardware key hash permits backup copying of software but prevents its unlicensed use on additional computers); key (In IP security (IPSec), a value used in combination with an algorithm to encrypt or decrypt data. Key settings for IPSec are configurable to provide greater security)
fig.	arethusa; caravan (птахів); pass (до чогось); pass-key; passport
fin.	message authentication code (код, що засвідчує істинність повідомлення, MAC); tested key
IT	criterion
law	clue (до розгадки чогось); key (шифру тощо); lead
microel.	key (на корпусі ІС)
mus.	clef; key
poetic	fount; fountain; water-spring
sport.	key-lock (прийом боротьби)

ключем : 452 phrases in 37 subjects

American usage, not spelling	2
Artillery	1
Automated equipment	1
Automobiles	3
Aviation	13
Botany	1
Business	1
Business style	3
Chemistry	1
Communications	3
Computers	23
Construction	11
Diplomacy	2
Economy	13
Figurative	1
Finances	1
French	1
General	62
Information security and data protection	30
Information technology	72
Law	2
Mechanic engineering	11
Medical	3
Microelectronics	7
Microsoft	23
Military	31
Music	3
Oil / petroleum	3
Oil and gas	88
Procurement	1
Proverb	1
Radio	2
Rail transport	1
Technology	25
Telecommunications	4
Telephony	1
Uncommon / rare	1