DictionarygreaseOily or fatty substance
noun / verb

grease

GREESS/ɡriːs/

Fatty material applied to make surfaces move smoothly.

The spatula lifts a thick dollop of machine grease beside the gear.

Small open tin of thick amber machine grease with a spatula lifting a viscous dollop beside a plain metal gear, no words or brand.
Etymology

Latin crassus described something thick or fat; its descendant became a noun for oily animal fat. That material sense underlies the modern substance used in cooking or lubrication.

In context

Weber Grills1:09
A chicken cooking on the rotisserie will drop a lot of grease.
Simple Steps to the Perfect Rotisserie Chicken | Weber Grills

More examples

  • A little grease keeps the hinge from squeaking.
  • We grease the wheel bearings before installing them.
  • The freshly greased parts slide easily against each other.

Forms

grease · greases · greased · greasing

greasy adjective — Covered with or containing oil or grease.

Similar words

lubricant
Any substance that reduces friction, not necessarily fatty.
oil
Usually a flowing liquid rather than a thick lubricant.