како́й
adverb
with a long-form adjective
how (to what extent/degree)
exclamative
how (to a significant extent/degree)
(used to indicate surprise, delight or horror)
како́й
what; how; like what, how
(out of all instances of a noun) what
(out of a specific set of instances of a noun) what, which
(out of all instances of a noun) what, what one
(out of a specific set of instances of a noun) what, what one, which, which one
exclamative
what (a) (used to indicate an intense manifestation of something)
Како́й у́жас!
How horrible!
(lit. “What horror!”)
concessive
with ни
whatever/whoever/however/whatever like, no matter what/who/how/what like
used to link a relative clause, usually after тако́й, тако́в, тот etc.
(may be translated as "that" or "which", or may not be translated)
used in the following idiomatic expressions
(который)