Akademik

Ni

abbr.
1 (in the UK) National Insurance.
2 Northern Ireland.

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Ni (no period),

nickel (chemical element).

N.I.,

Northern Ireland.

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symbol the chemical element nickel

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NI [NI] abbreviation

(in Britain) ↑National Insurance

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ni

obs. var. ne adv.

Useful english dictionary. 2012.