Solutions Science guru Bill has 8 entries with similar clues

• 4-letter words
• attoIt means "billionth of a billionth"
• sikhGuru Nānak follower
• 5-letter words
• swamiGuru took to the water alongside island
• ormanTV finance guru Suze
• 6-letter words
• wisdomwhat a guru dispenses
• mentorpersonal guru
• 7-letter words
• gok-wanTV style guru
• teacherGuru for an Indian, rabbi for a Jew