the whole quantity or extent of something

सब कुछ

English Usage: All was quiet in the room.

Hindi Usage: कमरे में सब कुछ शांति थी।

An informal term for "everyone" or "all"

सब

English Usage: Everyone is welcome to the party.

Hindi Usage: पार्टी में सबका स्वागत है।

The totality of remarks or statements made.

पूरी बात

English Usage: All is well that ends well.

Hindi Usage: जो अंत भला वह सब भला।

every one of; the whole of

सब

English Usage: All students must submit their assignments on time.

Hindi Usage: सभी छात्रों को अपनी असाइनमेंट समय पर जमा करनी होगी।