This is the 1190th most frequent Japanese word.
移行
Transition; shift; migration.
In this sentence, 移行 (ikou) is used as a noun to indicate the act or process of transitioning or shifting from one system to another.
プロジェクトが新しいシステムに移行しました。
The project transitioned to the new system.
Here, 移行 (ikou) is used to describe the subject of the sentence, referring to the concept of migration or change.
ソフトウェアの移行には準備が必要です。
The transition of the software requires preparation.
In this example, 移行 (ikou) is used as part of a verb phrase '移行する' meaning to transition or migrate.