US /ˌʌndɚˈniθ/ UK /ˌʌndəˈniːθ/
adv prep adj noun Freq #3163

Meanings

  1. 1
    prep

    Directly below or under something.

    The cat was hiding underneath the table.

  2. 2
    adv

    In or to a position below; on the lower side.

    She wore a thin shirt with nothing underneath.

  3. 3
    noun

    The bottom or lower surface of something.

    The underneath of the aircraft was painted blue.

Thesaurus

Synonyms
1 prep · directly below or under... underbelowbeneath

Etymology

From Middle English undernethe, undernethen, from Old English underneoþan (“underneath”), ultimately from Proto-Germanic *underniþer. Equivalent to under- + neath.

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