Answer:

pairing

Answer	Crossword Clue
PAIRING	Forming a duo
PAIRING	Match-up
PAIRING	Matching.

PAIRING	Selecting twos, as did Noah.
PAIRING	Synapsis
PAIRING	Sommelier's suggestion

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.