This is the 12017th most frequent Russian word.
зенитно
"Зенитно" translates to "anti-aircraft" in English.
ренитно-ракетный комплекс: The word 'зенитно' is used as a prefix describing a system related to anti-aircraft defense.
Зенитно-ракетный комплекс обеспечивает защиту от воздушных угроз.
The anti-aircraft missile system provides protection against aerial threats.
зенитное орудие: The word 'зенитное' is used as an adjective indicating a weapon designed for anti-aircraft purposes.
Зенитное орудие расположено на крыше здания.
The anti-aircraft cannon is placed on the building's roof.
зенитными установками: The word 'зенитный' is used as an adjective in instrumental plural form, describing installations aimed towards anti-aircraft operations.