(baseball, rare) Synonym of outfield. / (American football) The area behind the line of scrimmage occupied before the snap by the team on offense.

The smaller of two channels in a river that diverge to form an island. / A secondary channel of activity, typically in parallel with primary channels and somewhat independent of them.

Alternative spelling of backchannel

If you do me a favor then I will do you a favor; quid pro quo.

Alternative spelling of swaybacked

(idiomatic) At a time in the distant past.

(idiomatic) At a time in the distant past.

(idiomatic) To be particularly, especially uncannily, observant; a perceived ability to see in all directions at once.

Shaped or curved like a saddle. / Having a saddle-shaped marking; saddleback.

(of riding a horse) with a saddle, rather than bare-backed