SimilarityRank
coupon_code 0.862 47847
discount_code 0.827 84923
at_checkout 0.698 98571
discount 0.671 4205
coupon 0.658 9832
[number]_%_off 0.658 20951
$_[number]_off 0.636 99122
coupon_for 0.631 66115
[number]_%_discount 0.617 82527
special_offer 0.616 21925
Coupons 0.613 94090
free_shipping 0.591 40947
discount_for 0.582 38473
Discount 0.579 45973
special_rate 0.574 99063
discounted 0.573 54028
discount_on 0.567 44577
a_discount 0.561 21189
group_rate 0.547 78172
freebie 0.536 32842
for_only_$_[number] 0.533 44656
free_trial 0.532 59115
gift_card 0.532 24908
great_deal 0.530 75425
full_price 0.527 92207