SimilarityRank
free 0.764 239
Free 0.684 3297
be_completely_free 0.649 92779
completely_free 0.641 87642
totally_free 0.619 53802
for_free 0.618 2653
absolutely_free 0.611 73133
for_Free 0.610 22438
for_Free_! 0.602 94560
-_Free 0.601 83405
free_to_attend 0.544 67690
free_online 0.529 44783
offer_free 0.522 22361
only_$_[number] 0.500 26659
! 0.498 38
be_available_for_free 0.498 82037
be_offer_free 0.495 69894
no_charge 0.493 57253
for_only_$_[number] 0.493 44656
fun_! 0.488 13812
for_just_$_[number] 0.482 61758
no_cost 0.482 57332
easy_! 0.482 71592
free-of-charge 0.480 93259
free_event 0.479 48403