to write a composition

the first, the vanguard, the state of going out in front / the future, prospects / (finance) anticipated future movement in market prices

an error, a mistake / the misunderstood

to misunderstand / make a mistake, make an error

policy

stricture, constriction, narrowness

to become stenosed, to be affected with stenosis

search, lookup, exploration, hunt / (computer science) search

search, look up

a work, especially a work of art such as a performance, a painting, a piece of pottery, etc.