to approve, to recognize something as right or appropriate
Building blocks
heaks - from the word "hea" (good) but with the "-ks" ending which indicates the translative case.
kiitma - to praise
Usually, the meanings of compound verbs are just a combination of the adverb and the verb’s meaning.
By saying "heaks kiitma," it doesn't just mean "good praising" (which is a more literal translation based on individual words). Instead, it focuses on the idea of something being approved and becoming good as a result (to praise as good.)
How to use it
Approval:
"Juhatus kiitis tema ettepaneku heaks." (The board approved his proposal.)
Acknowledging a Decision or Action as Positive:
"Politsei kiitis tema otsuse heaks." (The police approved of his decision.)
Accepting Something as Good or Satisfactory:
"Arst kiitis tema tervisliku seisundi heaks." (The doctor approved of his healthy condition.)
Example
Ungari parlament kiitis heaks Rootsi NATO-ga liitumise
Literally: “Hungarian parliament approved Sweden’s NATO-with accesion”
Idiomatically: “The Hungarian parliament approved Sweden's accession to NATO”
Ungari - Noun - Genitive Sg, "Hungarian"
parlament - Noun - Nominative Sg, "parliament"
kiitis heaks - Compound verb - 3P Past Sg, "approved"
Rootsi - Noun - Genitive Sg, "Sweden's"
NATO-ga - Abbreviation - Comitative Sg, "NATO with"
liitumise - Noun - Genitive Sg "accession"