A synonym for "expensive" is "costly." Other alternatives include "pricey" and "high-priced." Each of these terms conveys a similar meaning of something that requires a significant amount of money to purchase.
AnswerFrequent
Accomplish
flight
collect
vocal,vociferous
The Ponderosa
pink and hot pink
bleached, bloodless, chalky
phonograph
annuity, apportionment, bequest
Genius, wonder, phenomenon
abollish, x-out, removed