signal;  signalling;  signaling;  traffic light;  traffic signal
 opposite;  opposition;  versus;  vs.;  to (e.g. "winning a game five to three");  equal footing
 noise (usu. unpleasant);  interference (e.g. radio);  static;  gossip;  irresponsible criticism
 ratio;  proportion;  match;  equal;  explicit comparison (style of the Shi Jing);  Philippines