安全

The word "anzen" refers to an objective state where there is no danger, risk, or threat of harm. It is often used in technical, legal, or physical contexts, such as "safety standards" or "safe zones."

A critical distinction must be made between "anzen" (安全) and "anshin" (安心). While "anzen" describes an objective condition (Safety), "anshin" describes a subjective feeling of relief or peace of mind (Reassurance). For example, a building may be structurally "anzen" (safe), but a person might still feel "anshin" (relieved) only after they have been told it is safe.

In professional or industrial settings, "anzen" is frequently paired with "dai-ichi" (first) to form the slogan "Anzen Dai-ichi" (Safety First), which is ubiquitous in Japanese workplaces and construction sites. It is a formal and neutral term suitable for all registers, from casual conversation to official government reports.