Define depreciate: to lower in honor or esteem; to lower the price or estimated value of â depreciate in a sentence to lower in honor or esteem; to lower the price or estimated value ofâ¦ See the full definition
Definition of 'grease'. grease. Grease is a thick, oily substance which is put on the moving parts of cars and other machines in order to make them work smoothly. ...grease-stained hands. If you grease a part of a car, machine, or device, you put grease on it in order to make it work smoothly.
These children, covered in grease and crawling in the tight spaces in the ceilings, were equated with monkeys. Noun[edit] ( 1 idiomatic, slang) A mechanic, often with the specific connotation of an automobile mechanic.  I'm no grease monkey, but I can manage to change out my engine's spark plugs without assistance.