Ring and Toll-free call

Ring noun - A group involved in secret or criminal activities.

Toll-free call and ring are semantically related In some cases you can use "Toll-free call" instead a noun "Ring".

Nearby Words: ringing, ringer, ringlet, ringed, ringside

Ring and toll-free call are semantically related in telephone communication topic. You can use "Ring" instead a noun phrase "Toll-free call", if it concerns topics such as conversation using telephone.