symmetrical pair, left and right pair

bilateral symmetry

a piece of news; tidings; information

(mathematics) symmetric

(mathematics) symmetry

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

items that come in pairs / sets of furniture etc.

footwear, footgear: a shoe, (a pair of) shoes