Definitions
the lower side of anything
Word origin
From under- + side.
Used in a sentence
“[...] and the neat reading lamps on the underside of the luggage racks, under passenger control, are an attractive feature of the first class compartments.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Bottom surface”9 letters
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