"ねば" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 助詞",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "particle",
  "pos_title": "助詞",
  "senses": [
    {
      "examples": [
        {
          "ref": "（山本五十六）",
          "text": "やってみせ、言って聞かせて、させてみせ、ほめてやらねば、人は動かじ。"
        }
      ],
      "glosses": [
        "動詞の未然形、形容詞の連用形、だの連用形に付いて仮定の打消しを示す。文語的。"
      ],
      "id": "ja-ねば-ja-particle-uuM5qKID"
    },
    {
      "examples": [
        {
          "text": "もう行かねば。"
        }
      ],
      "glosses": [
        "(ねばならないの省略) 現在または未来の必要性を示す。"
      ],
      "id": "ja-ねば-ja-particle-CQIqw5N-"
    }
  ],
  "synonyms": [
    {
      "word": "な"
    },
    {
      "word": "ないと"
    },
    {
      "word": "なきゃ"
    },
    {
      "word": "なくちゃ"
    },
    {
      "word": "なくては"
    },
    {
      "word": "なければ"
    },
    {
      "word": "にゃ"
    },
    {
      "word": "にゃあ"
    }
  ],
  "word": "ねば"
}

{
  "categories": [
    "日本語",
    "日本語 助詞"
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "particle",
  "pos_title": "助詞",
  "senses": [
    {
      "examples": [
        {
          "ref": "（山本五十六）",
          "text": "やってみせ、言って聞かせて、させてみせ、ほめてやらねば、人は動かじ。"
        }
      ],
      "glosses": [
        "動詞の未然形、形容詞の連用形、だの連用形に付いて仮定の打消しを示す。文語的。"
      ]
    },
    {
      "examples": [
        {
          "text": "もう行かねば。"
        }
      ],
      "glosses": [
        "(ねばならないの省略) 現在または未来の必要性を示す。"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "な"
    },
    {
      "word": "ないと"
    },
    {
      "word": "なきゃ"
    },
    {
      "word": "なくちゃ"
    },
    {
      "word": "なくては"
    },
    {
      "word": "なければ"
    },
    {
      "word": "にゃ"
    },
    {
      "word": "にゃあ"
    }
  ],
  "word": "ねば"
}