There are 2 definitions of ns in English:

ns1

Syllabification: ns

abbreviation

Nanosecond.

Definition of ns in:

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Word of the day anomalous
Pronunciation: əˈnɒm(ə)ləs
adjective
deviating from what is standard, normal, or expected

There are 2 definitions of ns in English:

NS2

Syllabification: NS

abbreviation

1New Style.
1.1Nova Scotia (in official postal use).

Definition of ns in:

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Word of the day anomalous
Pronunciation: əˈnɒm(ə)ləs
adjective
deviating from what is standard, normal, or expected