Necessities
Essentials
noun
I have certain demands for goods to take on this trip. Don't worry, it's just the necessities and essentials.
必需品 is a relatively formal word that refers to items that are necessary for daily life, survival, or specific activities.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
新生児にとっての必需品って何だろう。
I wonder what the necessities for a newborn baby are.