“The "S" of iOS: Abbr.” Crossword Clue

Why this is the answer

The hint "The 'S' of iOS: Abbr." is referring to the word "SYS" in the context of iOS.

NYT Mini appearances

• Tuesday, May 27, 20253-Down, answer: SYS
• Saturday, March 8, 202514-Across, answer: SYS

Related crossword clues

• Flower ___ (as described by 1-, 4-, 5- and 6-Across, read in order?)
• Cause of increased "Aww"s and decreased "Zzz"s
• "___ the whole world gone mad?"
• Certain religious Jew
• 4-Down in the chest
• Still competing