achieve   ▶ guheza
 (goal) gushika kw'ihangiro
En-En dictionary 
gushikira (-shikiye)     v   ▶ to arrive at, to attain, to achieve
goal   ▶ akamaro
 (to reach, achieve a ~) gushika kw'ihangiro
En-En dictionary 
guheza (-heje)     v   ▶ 1. to finish, to complete, to end (vt), 2. to achieve, 3. to conclude, 4. to exhaust
(often used for 'then' when one action is directly followed by another, e.g. Umwigisha ahanura abana, araheza arabasezera = the teacher admonished the children, then he bid them goodbye)