Coupon vs Vouchor - What's the difference?

coupon | vouchor |

As nouns the difference between coupon and vouchor

is that coupon is while vouchor is (legal).

Vouchor vs Voucher - What's the difference?

vouchor | voucher |

As nouns the difference between vouchor and voucher

is that vouchor is (legal) while voucher is a piece of paper that entitles the holder to a discount, or that can be exchanged for goods and services.

As a verb voucher is

to establish the authenticity of; to vouch for.