"sharp rush" meaning in English

{
  "forms": [
    {
      "form": "sharp rushes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sharp rush (plural sharp rushes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Ancient Greek translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Rushes",
          "orig": "en:Rushes",
          "parents": [
            "Commelinids",
            "Water plants",
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A widespread species of rush, Juncus effusus."
      ],
      "id": "en-sharp_rush-en-noun-w3r5r5LQ",
      "links": [
        [
          "species",
          "species"
        ],
        [
          "rush",
          "rush"
        ],
        [
          "Juncus effusus",
          "Juncus effusus#Translingual"
        ]
      ],
      "translations": [
        {
          "code": "grc",
          "lang": "Ancient Greek",
          "roman": "oxúskhoinos",
          "sense": "Juncus effusus",
          "tags": [
            "masculine"
          ],
          "word": "ὀξύσχοινος"
        }
      ]
    }
  ],
  "word": "sharp rush"
}

{
  "forms": [
    {
      "form": "sharp rushes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sharp rush (plural sharp rushes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Ancient Greek translations",
        "en:Rushes"
      ],
      "glosses": [
        "A widespread species of rush, Juncus effusus."
      ],
      "links": [
        [
          "species",
          "species"
        ],
        [
          "rush",
          "rush"
        ],
        [
          "Juncus effusus",
          "Juncus effusus#Translingual"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "grc",
      "lang": "Ancient Greek",
      "roman": "oxúskhoinos",
      "sense": "Juncus effusus",
      "tags": [
        "masculine"
      ],
      "word": "ὀξύσχοινος"
    }
  ],
  "word": "sharp rush"
}