As nouns the difference between terms and russki
is that terms is while russki is russian.
As an adjective russki is
(usually|derogatory|colloquial) russian.
terms
English
Noun
(head)
Statistics
*
----
russki
English
Alternative forms
* Rusky
Adjective
(
en adjective)
(usually, derogatory, colloquial) Russian.
Noun
(en-noun)
Russian.
Synonyms
* katsap (Ukrainian context )