And warn them, [O Muḥammad], of the Day of Regret, when the matter will be concluded; and [yet], they are in [a state of] heedlessness, and they do not believe.
Sahih International
وَأَنذِرْهُمْ
wa-andhir'hum
And warn them
Word breakdown
و
Harf · Conjunctionand
أنذرْ
Fi'l · VerbAnd warn them
to warn; a warner, warning
130× in the Quran · Common
هُمْ
Ism · Personal pronounthem/their
Grammar rules
وَأَنذِرْهُمْ (And warn them) is a command — it's telling someone to do something.
We translate it as a direct command — "[Do this]!"
Lesson 10 · Commands & Futureوَأَنذِرْهُمْ (And warn them) uses form IV (أَفْعَلَ) — the أ at the start makes it causative ("to make someone do something").
We translate it as "to make [someone] do" or "to cause [action]".
Lesson 12 · Verb Families II–IVوَأَنذِرْهُمْ (And warn them) starts with وَ, the most common Arabic word — it means "and".
We add "and" to connect this to what came before.
Lesson 4 · Particles