по существу; в сущности; в глубине души (DBVD); по сути (At bottom he was really a decent fellow – По сути он неплохой человек Taras); в основе

at bottom

: 252 phrases in 38 subjects

Armored vehicles	1
Automated equipment	1
Automobiles	3
Business	2
Chess	4
Computer graphics	1
Dentistry	2
Economics	1
Figure of speech	4
Finances	1
Food industry	1
Football	1
General	90
Idiomatic	13
Informal	4
Internet	1
Logistics	2
Machinery and mechanisms	1
Makarov	62
Mathematics	7
Mechanic engineering	8
Military	4
Mining	1
Mobile and cellular communications	1
Oil and gas	5
Oilfields	2
Programming	2
Proverb	8
Sakhalin	3
Scientific	1
Sociology	3
Sports	1
Statistics	2
Technology	5
Telecommunications	1
Textile industry	1
Uncommon / rare	1
Wood processing	1