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"side" is also used as a crossword clue. If that's what you saw, the answer is often flank (5 letters).
Definitions
Edge; direction; team
Word origin
From Middle English side, from Old English sīde (“side, flank”), from Proto-Germanic *sīdǭ (“side, flank, edge, shore”), derived from *sīdaz, probably from Proto-Indo-European *seh₁- (“long, lasting”). Cognate with Saterland Frisian Siede (“side”), West Frisian side (“side”), Dutch zijde, zij (“side”), German Low German Sied (“side”), German Seite (“side”), Danish, Norwegian Bokmål, and Norwegian Nynorsk side (“side”), Swedish sida (“side”).
Used in a sentence
“A square has four sides.”
“A cube has six sides.”
“Which side of the tray shall I put it on? The patient was bleeding on the right side.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer9 curated clues
01“Edge of a box”4 letters
02“Edge or team”4 letters
03“Flank”4 letters
04“Left or right edge”4 letters
05“Left or right half”4 letters
06“Left or right part”4 letters
07“Team in a debate”4 letters
08“Team in a dispute”4 letters
09“One face or part”4 letters
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