Meaning of なにより in Japanese

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Definition of なにより

なにより(naniyori) 【何より】

(exp, adv, n, adj-na) most; best; above all
何よりもまず健康でなければならない。
Above all, we must be healthy.

なによりも(naniyorimo) · なんよりも(nanyorimo) 【何よりも】

One will be judged by one's appearance first of all.

I know you're upset about your car being totaled, but you weren't injured and you should be thankful to be alive.

私わたしはなによりもまずこの辞書じしょを手に入れたい。

I want to have this dictionary most of all.

Above all, you must work now.