Challenging Outdoor Personal Encounter

Challenging

: 522 phrases in 80 subjects

Advertising	3
Artificial intelligence	3
Automated equipment	1
Automobiles	1
Aviation medicine	2
Biology	3
Bookish / literary	1
Business	9
Caspian	1
Chess	7
Cinematography	1
Cliche / convention	3
Clinical trial	1
Construction	3
Cooking	1
Criminal law	1
Diplomacy	18
Ecology	1
Economics	10
Education	7
Elections	1
Electronics	4
Euphemistic	4
Figurative	1
Football	1
Formal	1
General	167
Geology	2
Gold mining	1
Historical	5
Household appliances	1
Human resources	1
Humorous / Jocular	4
Ice hockey	2
Idiomatic	1
Immunology	5
Informal	2
Information technology	1
Intelligence and security services	2
Law	29
Linguistics	1
Logistics	1
Makarov	86
Mass media	14
Mathematics	4
Medical	5
Meteorology	1
Microelectronics	1
Military	7
Nautical	1
Neologism	3
Notarial practice	4
Obsolete / dated	1
Oil / petroleum	1
Oil and gas	5
Oilfields	2
Ophthalmology	1
Patents	3
Philosophy	1
Politics	16
Production	6
Programming	3
Psycholinguistics	1
Quotes and aphorisms	2
Radiolocation	1
Rail transport	1
Religion	2
Rhetoric	7
Sakhalin	2
SAP	5
Scientific	1
Security systems	3
Slang	3
Sociology	2
Sports	2
Statistics	1
Taxes	1
Trade unions	5
Weapons of mass destruction	3
Welfare & Social Security	1