1. Any thick, viscous matter
   - sludge, slime, goo, goop [N. Amer], gook, gunk, muck, ooze, thick, gloop [Brit, Cdn]

Derived forms: gucks

Type of: matter

• genus Napaea
• genus Narcissus
• genus Narthecium
• genus Nasalis
• genus Nasturtium
• genus Nasua
• genus Natrix
• genus Nauclea
• genus Naucrates
• genus Nautilus
• genus Necturus
• genus Negaprion
• genus Nelumbo
• genus Nemophila
• genus Neoceratodus
• genus Neofiber
• genus Neohygrophorus
• genus Neolentinus
• genus Neomys
• genus Neophron
• genus Neotoma
• genus Nepa
• genus Nepenthes
• genus Nepeta
• genus Nephelium