1. able -----disable enable capable capability capacity available avail availability
(1)be disabled from doing
He was disabled from walking in a accident.
(2)enable sb to do
Political stability will enable the county to achieve industrialization.
(3)to no avail
Henry tried to pull the heavy cart,but to no avail.
2. abolish-----abolishment abolition abolitionist abortion cancel cancellation eliminate elimination
3. accident-----accidental occidental incident incidentally incidence coincidence coincide occasional occasionally occasion occur occurrence recur event eventual eventually episode
4. act-----action interaction interact inter auction active activate activist enact actual factual factor faction virtual virtually react reaction rectionary agent agency agenda attorney
5. add addition additional additive plus plural ladder elevator eleate escalator multiply multiple multitude subtract surplus
