もう安心だ

it's safe now

→ もう

phrase Rare #45,700

it's safe now Expresses relief that there is no longer a need to worry.

JA: 警察が来たから、もう安心だ。

EN: The police are here, so it's safe now.

What a relief!

— Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train (2020)

They’ve already gone home, so I can relax now.

Now I can finally relax.

— es［エス］ (2001)