This is the 5745th most frequent Japanese word.
できあがっ
"できあがっ" is the stem form of "できあがる," meaning "to be completed" or "to be finished."
できあがった here means 'was completed' or 'was ready,' describing the cake after baking.
このケーキは焼きたてで、すぐにできあがった。
This cake was freshly baked and was ready quickly.
できあがった in this sentence indicates 'was completed,' reflecting the outcome of the project's efforts.
プロジェクトが半年をかけてようやくできあがった。
The project was finally completed after six months.
できあがった implies 'was finished,' highlighting the work's completion attributed to personal effort.