to start being used or enforced
使用または施行を開始する (shiyou matawa shikou o kaishi suru)
"The new tax regulations will take effect from January."
"新しい税制規則は1月から発効する。" (Atarashii zeise kikoku wa ichigatsu kara **hakkou suru**.)
to develop gradually in the process of achieving success
to decide that you want to achieve something specific
to end a relationship or stop communicating with someone
to become partners or friends with someone
to continue progressing with a plan or idea
to suddenly start smiling widely
