How to say "investigation" in Russian?

[Rassledovaniye]

"investigation" is Расследование in Russian.

Расследование means "investigation" in English.

Word #1032 of 6,000 by frequency in Russian.

Расследование пожара займёт несколько недель.

The investigation into the fire will take several weeks.

• Доказать, to prove
• Научный, scientific
• Почему-то, for some reason
• Снимать, to take off, to film, to rent
• Слава, Fame
• Где-нибудь, somewhere, anywhere
• Сначала, First, at first
• Лига, league