What does "nonproliferation" mean?

Opposition to the spread of something, especially nuclear weapons.

What is a synonym for "nonproliferation"?

Common synonyms include: non-proliferation.

noun

noun ·6 syllables ·Rare ·Advanced level

Noun

1
Opposition to the spread of something, especially nuclear weapons. uncountable, usually
"Nuclear Nonproliferation Treaty"
2
the prevention of something increasing or spreading (especially the prevention of an increase in the number of countries possessing nuclear weapons) wordnet

"It is crucial that we fine-tune the dialogue on strategic stability and global security and nonproliferation of weapons of mass destruction."

From non- + proliferation.