t'other
det. C2 Proficiency tother
det. the other one. You use this in certain British regional accents to talk about the second of two things.
det. a dialectal contraction of 'the other', typically used to refer to the second of two items or people.
One hand was empty, but t'other held a key.
He kept one dog in the house and left t'other in the yard to guard the gate.
The old farmer pointed toward the horizon, explaining that one path led to the village while t'other would take a traveler straight into the marshlands.
Usage
A dialectal contraction common in Northern England; functions as a determiner or pronoun.