Definition of grease
(Entry 1 of 2)
1a
: rendered animal fat
b
: oily matter
c
: a thick lubricant
2
: wool as it comes from the sheep retaining the natural oils or fats
in the grease
of wool or fur
: in the natural uncleaned condition
grease
verb
greased; greasing
Definition of grease (Entry 2 of 2)
1
: to smear or daub with grease
2
: to lubricate with grease
3
: to soil with grease
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Merriam-Webster unabridged
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Time Traveler for grease
The first known use of grease was in the 13th century
See more words from the same century