obverse (n.)
- ally
- analogue
- anteriority
- anti
- antipodal
- antipode
- antipodes
- antithesis
- antonym
- associate
- balancing
- brother
- cognate
- companion
- complement
- congenator
- congener
- contra
- contradictory
- contrary
- converse
- coordinate
- correlate
- correlative
- correspondent
- counter
- counterbalance
- countercheck
- counterpart
- counterpoint
- counterpoise
- display
- equivalent
- facade
- face
- facet
- facia
- facing
- fellow
- foil
- fore
- forefront
- foreground
- forehand
- foreland
- forepart
- forequarter
- foreword
- front
- frontage
- frontal
- frontier
- frontispiece
- head
- heading
- heads
- hostile
- image
- inverse
- lap
- like
- likeness
- mate
- offset
- opposite
- parallel
- pendant
- picture
- preface
- prefix
- priority
- proscenium
- reciprocal
- reverse
- setoff
- similitude
- simulacrum
- sister
- such
- tails
- tally
- twin
- vis-a-vis