How to say "Start" in Japanese

When translating "start" into Japanese, you must choose carefully between 開始 and 着手する. In Japanese, 開始 (かいし (kaishi)) is typically associated with "start; commencement; beginning" (Syllabus Level: N3) and represents Often used for events, meetings, projects, or formal procedures. Can be a noun. On the other hand, 着手する (ちゃくしゅする (chakushusuru)) maps to "to start work, to embark on, to commence" (Syllabus Level: N2) and represents Often used for formally or significantly beginning a project, task, or investigation.. A literal translation of "start" can often sound unnatural to native Japanese speakers if mixed up!