Meaning of なんにち in Japanese

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Definition of なんにち

なんにち(nannichi) 【何日】

なんにちも(nannichimo) 【何日も】

(adv) for many days; for several days →Related words: 何日
何日も続けて雨が降った。
It rained for several days on end.

なんにちか(nannichika) 【何日か】

(exp) some days; several days →Related words: 幾日か
ここ何日かの内に必ず私のところへ会いに来て下さい。
Don't fail to come and see me one of these days.