"יישר" meaning in Hebrew

{
  "forms": [
    {
      "form": "יִשֵּׁר",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "yishér",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "pi",
        "dwv": "יִשֵּׁר",
        "tr": "yishér"
      },
      "expansion": "יישר / יִשֵּׁר • (yishér) third-singular masculine past (pi'el construction)",
      "name": "he-verb"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Hebrew entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Hebrew terms belonging to the root י־שׁ־ר",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "roman": "yishar kóakh",
          "word": "יִישַׁר כּוֹחַ"
        }
      ],
      "glosses": [
        "to straighten"
      ],
      "id": "en-יישר-he-verb-Ga16WZPU",
      "links": [
        [
          "straighten",
          "straighten"
        ]
      ],
      "tags": [
        "construction-pi'el"
      ]
    }
  ],
  "word": "יישר"
}

{
  "derived": [
    {
      "roman": "yishar kóakh",
      "word": "יִישַׁר כּוֹחַ"
    }
  ],
  "forms": [
    {
      "form": "יִשֵּׁר",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "yishér",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "pi",
        "dwv": "יִשֵּׁר",
        "tr": "yishér"
      },
      "expansion": "יישר / יִשֵּׁר • (yishér) third-singular masculine past (pi'el construction)",
      "name": "he-verb"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Hebrew entries with incorrect language header",
        "Hebrew lemmas",
        "Hebrew pi'el verbs",
        "Hebrew terms belonging to the root י־שׁ־ר",
        "Hebrew verbs"
      ],
      "glosses": [
        "to straighten"
      ],
      "links": [
        [
          "straighten",
          "straighten"
        ]
      ],
      "tags": [
        "construction-pi'el"
      ]
    }
  ],
  "word": "יישר"
}