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 Apr 28, #322 - Daily Updates & Hints
Today’s Wordle Answer Apr 28 #1044- NYT Wordle Hints & Updates
NYT Mini Crossword Answers Today - The Mini for Apr 28 Solved
NYT Strands Today - Hints, Spangram & Answers for April 28