What is the difference between Couple and Pair? How to distinguish between Couple and Pair? Let's see the following examples.
✗ It took a pair of hours to fix the car.
✓ It took a couple of hours to fix the car.
✗ I'd like to buy a new couple of glasses.
✓ I'd like to buy a new pair of glasses.
Couple: Two things of the same type (don't need to use together) or two people who are married or in love.
Pair: Two things of the same type used together (a pair of shoes, a pair of gloves)