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Underside vs Underneath - What's the difference?

underside | underneath |

As nouns the difference between underside and underneath

is that underside is the side that is below or underneath, the bottom while underneath is the part under or lower.

As an adverb underneath is

below; in a place beneath.

As a preposition underneath is

under, below, beneath.

As an adjective underneath is

under, lower.

underside

English

Noun

(en noun)
  • The side that is below or underneath, the bottom.

    • Antonyms

    * (l)

    Anagrams

    *

    underneath

    English

    Adverb

    (-)
  • Below; in a place beneath.
    • (rfexample)
  • On the underside or lower face of.
    • (rfexample)

    Preposition

    (English prepositions)
  • Under, below, beneath.
    • Underneath the water, all was calm.
    We flew underneath the bridge.
    We looked underneath the table.
  • Under the control or power of.
    • There was little freedom underneath the jackboot.

    Adjective

    (-)
  • Under, lower.
    • You can have the underneath bunk.

    Noun

    (en-noun)
  • The part under or lower.
    • The underneath of the aircraft was painted blue.
  • A background radio sound track played during a specific announcement or program.
  • * 2009 , Jay Trachtenberg (radio host), KUT-FM Radio, Austin, Texas, 17 Dec.:
    • The underneath is music from the latest album by [...].