must-have

Noun

An item that one must own, or a feature that is essential to a service, etc.

Japanese Meaning

必需品 / 必要不可欠なもの / 絶対必要なアイテム

A must-have for any traveler is a reliable power bank that can charge multiple devices.

旅行者にとっての必須アイテムは、複数の機器を充電できる信頼できるモバイルバッテリーです。

Sense（1）

An item that one must own, or a feature that is essential to a service, etc.

Coordinate term: nice-to-have

must-haves

（ plural ）