to stop being interested in something
何かに興味を失う (nanika ni kyomi o ushinau)
"He quickly lost interest in the project."
"彼はすぐにそのプロジェクトへの興味を失った。" (kare wa sugu ni sono purojekuto e no kyomi o ushinatta)
to include something as part of a calculation or plan
an unidentified but informed source
To stop doing something that is no longer profitable.
a very close and trusted friend
to create a new vision or concept
very eager or excited to start something
