Come-on and Make headway

Come-on noun - Something that persuades one to perform an action for pleasure or gain.

Make headway and come-on are semantically related. In some cases you can use "Make headway" instead a verb phrase "Come-on".

Make headway verb - Obtain advantages, such as points, etc..

Come-on and make headway are semantically related. Sometimes you can replace phrase "Come-on" with "Make headway", this phrases are similar.