headway (n.)
- advance
- advancement
- amelioration
- amendment
- ascent
- betterment
- boost
- career
- course
- enhancement
- enrichment
- eugenics
- euthenics
- forwarding
- furtherance
- go
- go-ahead
- improvement
- leeway
- lift
- march
- melioration
- mend
- mending
- passage
- pickup
- preferment
- proficiency
- progress
- progression
- progressiveness
- promotion
- recovery
- restoration
- revival
- rise
- rolling
- steerageway
- travel
- upbeat
- uplift
- upping
- way
