"seif" meaning in English

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        "2": "ar",
        "3": "سَيْف",
        "4": "",
        "5": "sword"
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      "expansion": "Arabic سَيْف (sayf, “sword”)",
      "name": "der"
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      "expansion": "Doublet of xiphos",
      "name": "doublet"
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        "2": "ar",
        "3": "س ي ف"
      },
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  ],
  "etymology_text": "From Arabic سَيْف (sayf, “sword”). Doublet of xiphos.",
  "forms": [
    {
      "form": "seifs",
      "tags": [
        "plural"
      ]
    }
  ],
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      "args": {},
      "expansion": "seif (plural seifs)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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      "examples": [
        {
          "ref": "1954, Bulletin of the Research Council of Israel, volume 4, page 196:",
          "text": "Such seifs have a somewhat zig-zag form instead of a fairly straight line.\nOn the top of seifs small transverse dunelets are very often found, and these may be likened to almost straightened-out barchans.[…]On the top of the seif they form a wave-like pattern with a fairly defined \"wavelength\".",
          "type": "quote"
        },
        {
          "ref": "1973, Ralph Alger Bagnold, The Physics of Blown Sand and Desert Dunes, page 224:",
          "text": "Though the actual transition forms suggested in Fig. 76 do exist and have been examined by the author, the above tentative explanation of the growth of a seif dune chain should certainly not be taken as implying that all such chains have originated as barchans.",
          "type": "quote"
        },
        {
          "ref": "1980, P. Turner, Continental Red Beds, page 80:",
          "text": "Seifs are longitudinal forms elongated parallel to the prevailing wind direction.",
          "type": "quote"
        },
        {
          "ref": "2009 February 26, Bruno Andreotti et al., “Giant aeolian dune size determined by the average depth of the atmospheric boundary layer”, in Nature, volume 457, number 7233, →DOI, pages 1120–1123:",
          "text": "Tsoar, H. Dynamic processes acting on a longitudinal (seif) sand dune .",
          "type": "quote"
        }
      ],
      "glosses": [
        "A sand dune that elongates parallel to the prevailing wind."
      ],
      "id": "en-seif-en-noun-1w2OfNjA",
      "links": [
        [
          "sand dune",
          "sand dune"
        ],
        [
          "elongates",
          "elongates"
        ],
        [
          "prevailing",
          "prevailing"
        ],
        [
          "wind",
          "wind"
        ]
      ],
      "synonyms": [
        {
          "word": "longitudinal dune"
        },
        {
          "word": "saif"
        }
      ]
    }
  ],
  "word": "seif"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ar",
        "3": "سَيْف",
        "4": "",
        "5": "sword"
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      "expansion": "Arabic سَيْف (sayf, “sword”)",
      "name": "der"
    },
    {
      "args": {
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        "2": "xiphos"
      },
      "expansion": "Doublet of xiphos",
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        "1": "en",
        "2": "ar",
        "3": "س ي ف"
      },
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    }
  ],
  "etymology_text": "From Arabic سَيْف (sayf, “sword”). Doublet of xiphos.",
  "forms": [
    {
      "form": "seifs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "seif (plural seifs)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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    {
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        "English countable nouns",
        "English doublets",
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      "examples": [
        {
          "ref": "1954, Bulletin of the Research Council of Israel, volume 4, page 196:",
          "text": "Such seifs have a somewhat zig-zag form instead of a fairly straight line.\nOn the top of seifs small transverse dunelets are very often found, and these may be likened to almost straightened-out barchans.[…]On the top of the seif they form a wave-like pattern with a fairly defined \"wavelength\".",
          "type": "quote"
        },
        {
          "ref": "1973, Ralph Alger Bagnold, The Physics of Blown Sand and Desert Dunes, page 224:",
          "text": "Though the actual transition forms suggested in Fig. 76 do exist and have been examined by the author, the above tentative explanation of the growth of a seif dune chain should certainly not be taken as implying that all such chains have originated as barchans.",
          "type": "quote"
        },
        {
          "ref": "1980, P. Turner, Continental Red Beds, page 80:",
          "text": "Seifs are longitudinal forms elongated parallel to the prevailing wind direction.",
          "type": "quote"
        },
        {
          "ref": "2009 February 26, Bruno Andreotti et al., “Giant aeolian dune size determined by the average depth of the atmospheric boundary layer”, in Nature, volume 457, number 7233, →DOI, pages 1120–1123:",
          "text": "Tsoar, H. Dynamic processes acting on a longitudinal (seif) sand dune .",
          "type": "quote"
        }
      ],
      "glosses": [
        "A sand dune that elongates parallel to the prevailing wind."
      ],
      "links": [
        [
          "sand dune",
          "sand dune"
        ],
        [
          "elongates",
          "elongates"
        ],
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          "prevailing",
          "prevailing"
        ],
        [
          "wind",
          "wind"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "longitudinal dune"
    },
    {
      "word": "saif"
    }
  ],
  "word": "seif"
}