a slot cut in a part of a machine or an electrical connector, to ensure correct orientation with another part which is fitted with a key
Today’s NYT Connections Answers Jan 2, #571 - Daily Updates & Hints
Today’s Wordle Answer Jan 2 #1293- NYT Wordle Hints & Updates
NYT Mini Crossword Answers Today - The Mini for Jan 2 Solved
NYT Strands Today - Hints, Spangram & Answers for January 2