Definition of underside in English:


Syllabification: un·der·side
Pronunciation: /ˈəndərˌsīd


  • 1The bottom or lower side or surface of something: the butterfly’s wings have a mottled brown pattern on the underside
    More example sentences
    • There is also a rear loading ramp which forms the underside of the rear fuselage.
    • Seeds appear to have been produced on the underside of the leaf, with the leaf edges rolled over to form an enclosing chamber.
    • He can see crows nesting on the underside of tree branches, and leaves fluttering down to the sky.
  • 1.1The less favorable aspect of something: the sordid underside of the glamorous 1980s
    More example sentences
    • Do you think that folks are getting a lesson in civics or seeing the underside of politics?
    • The right type of Englishman is comfortable dealing with the underside of places like this.

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Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space