1. One who diligently examines.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• resaercher,
• researcgher,
• rsearchers,
• resarchers,
• reseached,
• researce,
• resercher,
• researche,
• reasearched,
• reserche,
• reseacher,
• researchesr,
• researchs,
• reasercher,
• reasearcher,
• reseracher,
• reserched,
• reasearchers,
• recearchers,
• resarches

• recharge,
• research lab,
• research,
• researchable,
• recherche.

The adjective form of the word "researcher" is "research".

The plural of the "researcher" can be the "researchers".

The singular of the "researcher" can be the "researcher".