What is the meaning of गुरु?

heavy

guru, teacher, sage

Jupiter

a smartass

teacher, guru

mentor

Devanagari script form of guru (“heavy”)

Devanagari script form of guru (“teacher”)

heavy, weighty

heavy in the stomach (food), difficult to digest

great, large, extended, long

long by nature or position (a vowel)

high in degree, vehement, violent, excessive, difficult, hard

grievous

important, serious, momentous

valuable, highly prized

haughty, proud (speech)

venerable, respectable

guru

any venerable or respectable person (father, mother, or any relative older than oneself)

master, teacher

sage

Source: wiktionary.org