Crossword Clue:

PRIAL a set of three also PAIRIAL

AnswerCrossword Clue
MONTEThree-card game that's totally not a scam, but also we have to go RIGHT NOW [siren sounds]
SPANISHOPENINGSet of chess moves also called the Ruy Lopez
ORIONSBELTGroup of stars also known as the Three Kings
BRYANThree-time also-ran
LEASHSet of three
TRIANGLESet of three.
TERNSet of three
TRIOSet of three
TRIADSet of three
TRINESet of three
TRINSet of three: Abbr.
LEASHSet of three hounds
LEASHSet of three hounds, in hunting