sentinel

FREQ #20235

n. 哨兵, 标记 vt. 警戒, 守卫 [计] 标记

发音

US /ˈsɛn.tɪ.nəl/

词形变化

sentinels 复数 sentinels sentineled sentineling sentinelled sentinelling sentinels 三单 sentineling 现在分词 sentinelling 现在分词 sentineled 过去式 sentineled 过去分词 sentinelled 过去式 sentinelled 过去分词

别名

centinell centonel centinel

释义与例句

n.
  1. 1.

    A sentry, watch, or guard.

    哨兵

    步哨

  2. 2.

    A private soldier.

    废旧
  3. 3.

    A unique value recognised by a computer program for processing in a special way, or marking the end of a set of data.

    计算机 工程 数学

    The <xmp> tag is a sentinel that suspends web-page processing and displays the subsequent text literally

  4. 4.

    A sentinel crab.

  5. 5.

    A sign of a health risk (e.g. a disease, an adverse effect).

    定语 医学

    sentinel animals can be used to explore endemic diseases.

v.
  1. 1.

    To watch over as a guard.

    及物

    He sentineled the north wall.

  2. 2.

    To post a guard for.

    及物

    He sentineled the north wall with just one man.

词汇关系

名词

同义词 6

watch scout lookout picket sentry spotter

上位词 2

watcher security guard

下位词 1

lookout man

相关短语

sentinel event sentinel events sentinel crab sentinel crabs North Sentinel Island stand sentinel 站岗, 放哨 stands sentinel standing sentinel stood sentinel

词源

1570s, from Middle French sentinelle, from Old Italian sentinella (perhaps via a notion of "perceive, watch", compare Italian sentire (“to feel, hear, smell”)), from Latin sentiō (“feel, perceive by the senses”). See sense, sentient.

来源：wiktionary