a·chieve 
(ə-chēv)
(ə-chēv)v. a·chieved, a·chiev·ing, a·chieves
v.tr.
1. To gain with effort or despite difficulty; reach: achieve fame as a singer; achieve a record speed.
2. To succeed in accomplishing; bring about: achieve a task; achieve an improvement in foreign relations. See Synonyms at perform.
v.intr.
To accomplish something successfully; perform at a standard or above standard level: skills needed to achieve in school.
[Middle English acheven, from Old French achever, from a chief (venir), (to come) to a head; see CHIEF.]
a·chieva·ble adj.
a·chiever n.